Hammond briefly retires under duress in season 4's "Chain Reaction", where he spends time with his two grandchildren, Kayla and Tessa. He is promoted to the rank of lieutenant general at the beginning of season 8, being placed in command of the new Homeworld Security command, a department in control of Stargate Command, the Prometheus project, and the Atlantian Antarctica outpost. Hammond recurs in the season 1 of Stargate Atlantis and seasons 8 through 10 of Stargate SG-1. Hammond appears in a civilian suit instead of a military uniform in season 9's "The Fourth Horseman", and Carter confirms his retired status in season 10's "The Road Not Taken". In his last appearance in the alternate timeline film Stargate: Continuum, Hammond acts as a military advisor to President Henry Hayes.
Don S. Davis knew Richard Dean Anderson (O'Neill) from Anderson's starring role in MacGyver, in which Davis was a stand-in for Dana Elcar (playing Pete Thornton, MacGyver's boss) before making several guest appearances. Davis died from a heart attack at the age of 65 on June 29, 2008, shortly before the release of Continuum, making this his final on-screen appearance as General Hammond.[4] For his portrayal of Hammond, Don S. Davis was nominated for a 2004 Leo Award in the category "Dramatic Series: Best Supporting Performance by a Male" for the season 7 episode "Heroes, Part 2".[5]
Jonas Quinn
Jonas Quinn is an alien from the planet Langara. He is played by former Parker Lewis Can't Lose actor Corin Nemec in a regular role in season 6, and in a recurring capacity in seasons 5 and 7. Jonas leaves his home planet Langara the penultimate season 5 episode "Meridian" after witnessing Daniel Jackson's lethal sacrifice and the following gleeful reaction of his planet's leaders. He is a fast learner and fills Daniel's empty spot on SG-1 in season 6. Following Daniel's return at the beginning of season 7, Jonas returns to his planet and last appears in the mid-season 7 episode "Fallout".
Corin Nemec เข้ามาแทนที่ Michael Shanks (Daniel Jackson) ในซีซั่นที่ 6 หลังจากที่ Shanks ออกจากรายการไปท่ามกลางข้อโต้แย้งหลังจบซีซั่นที่ 5 [ 6 ]ผู้ผลิตได้กำหนดแรงจูงใจของ Jonas ในการเข้าร่วม SG-1 โดยอิงจากความลังเลใจชั่วขณะของเขาที่จะป้องกันการตายของ Daniel และความรู้สึกรับผิดชอบของเขาหลังจากนั้น[ 7 ] Jonas ค่อยๆ ถูกรวมเข้ากับเรื่องราวในขั้นตอนการเปลี่ยนผ่านที่ยาวนานในช่วงครึ่งแรกของซีซั่นที่ 6 [ 8 ] [ 9 ] Nemec เปิดใจที่จะเล่นเป็น Jonas Quinn ต่อไปหลังจากซีซั่นที่ 6 แต่มีการทำสัญญาใหม่กับ Michael Shanks เพื่อให้ Daniel กลับมาในซีซั่นที่ 7 [ 8 ]บทบาทของ Jonas ถูกลดระดับลงเหลือเพียงบทบาทรับเชิญในซีซั่นที่ 7
Chief Master Sergeant Norman Walter Davis Harriman (portrayed by Gary Jones, seasons 1–10) joined the Stargate Command (SGC) after excelling in navigation and automatic flight control operations during the first Gulf War. General Hammond recruited him as someone with excellent technical ability and a cool head to operate the Stargate under extreme pressure. He specializes in installing, maintaining and repairing bomb navigation, weapons control as well as automatic flight control systems. He is also an expert in radio and navigational equipment, and in maintaining test and precision measurement equipment. He is primarily a Stargate technician, running the dialing computer and other equipment from the Control Room. He also acts as an occasional administrative assistant to the head of Stargate Command, and has manned the flight console on the bridge of the Prometheus.[33] From season 8 to 10, Harriman's role is expanded to advisor to the Head of Command of the SGC.
His name has been a source of confusion for many fans of Stargate SG-1. Originally, he was simply "Technician" or "Sergeant", listed as such in the show credits.[34] At some point, some of the writers gave him the name "Norman Davis", which came with a name tag, but was never used in dialogue. In the episode "2010", Jack O'Neill refers to him as "Walter". Later, in the eighth season of "Stargate SG-1", the character is addressed as "Sergeant Harriman", with "Harriman" actually based on GeneralGeorge Hammond addressing him as "Airman" what was misheard by fans because of Don S. Davis's Texan accent, resulting in the final name of "Walter Harriman". Many fans fondly refer to him as "the Chevron guy" as many of his on-screen appearances, especially earlier on in the show, had him saying "Chevron (insert number here) encoded".[33] On several DVD commentaries after the introduction of the name "Walter", producer-director Peter DeLuise refers to the character as "Walter Norman" and "Walter Norman Davis". The first time he ever says his own name is in the Stargate Atlantis episode "Home".[35]
After auditioning for the part as Harry Maybourne, the producers revealed that he "maybe" could get a spot as a recurring character in the show. McBeath called his role as Maybourne at the start of the series "boring", but was glad for the new change in the character's direction in the series after he was convicted for treason. McBeath also commented that the writers and the producers for the show had more "fun" when his character started to "loosen" up.[52] When the portraying actor Tom McBeath was asked about the O'Neill–Maybourne relationship, he explained their rapport as "I can't stand you, but at some level I have a lot of respect for you. And I do actually, grudgingly have a good time when you're around, and things seem to work out."[52] McBeath once stated that the character of Maybourne diminished after Richard Dean Anderson's departure from the show in season 8.[53]
Colonel Chekov, (played by Garry Chalk, seasons 5–6, 8–10) – Russia's liaison to Stargate Command following the early season 4 events of the short-lived Russian Stargate program. He first appears in season 5's "The Tomb", blaming SG-1 for the death of several Russian SG team members.[62] Chekov collaborates with the SGC several episodes later in "48 Hours", giving them a DHD from Russian possession and allowing the SGC to use the Russian Stargate.[63] Colonel Chekov is appointed as the Russian envoy to the SGC around season 6's "Redemption" and agrees to give the Russian Stargate to the US in exchange for money, X-302 technology, and a Russian SG team.[64] In season 6's "Disclosure", Colonel Chekov supports the US's presentation for the disclosure of the Stargate Program to the other three permanent members of the UN Security Council.[65] In season 8's "Full Alert", Colonel Chekov helps General O'Neill deal with the possible Goa'uld compromise of the US government and establishes a direct line between O'Neill and the Russian President to avert a nuclear war.[66] Chekov appears in season 9's "The Fourth Horseman" and "Crusade", where he has become a Russian representative of the IOA. He makes his last appearance in "Camelot" as the commander of the Earth ship Korolev to stop the Ori fleet from invading the Milky Way, but is killed when his ship is obliterated by the Ori Fleet, though six other crew members are transported from the ship before its destruction.[67]
Garry Chalk was assigned to the role as Chekov by executive producer Michael Greenberg and N. John Smith. They asked him if he could speak Russian, Chalk replied "No." Greenberg then replied "No matter!" And gave him his own Russian coach named Alexander Kalugin, who made an appearance in the Stargate SG-1 episode "Watergate" as one of the Russian soldiers. Portraying actor Chalk had previously worked with Richard Dean Anderson, Don S. Davis and Greenberg in 1986 on MacGyver and Smith in The Beachcombers. Greenberg had said to Chalk that they were going to bring him into the show, at first there was no audition or a single phone call, until season 5 of the series. During the shows history, Chalk "Begged" the producers for his character to go through the "Stargate", but they said no, but, eventually they came up with the idea of giving him his own starship. Chalk was the only non-Russian actor assigned in "Flesh and Blood".[68]
Catherine Langford
แคทเธอรีน แลงฟอร์ด รับบทโดยเคลลี่ วินท์ (เด็กหญิงในภาพยนตร์และในช่วงเริ่มต้นของStargate Origins ), วิเวกา ลินด์ฟอร์ส (หญิงชราในภาพยนตร์), เอลิซาเบธ ฮอฟฟ์แมน (หญิงชราในซีซั่น 1), แนนซี่ แม็คคลัวร์ (หญิงสาวในซีซั่น 1) และ กลินิส เดวีส์ (หญิงวัยกลางคนในซีซั่น 2), เอลลี กัลล์ ( Stargate Origins ) – ลูกสาวของศาสตราจารย์พอล แลงฟอร์ด นักโบราณคดีผู้ค้นพบประตูมิติ ในวัยเด็กเธอได้รับเครื่องรางที่มีรูปดวงตาแห่งราระหว่างการขุดค้นประตูมิติในกิซาในปี 1928 [ 69 ]ในยุคปัจจุบันของStargateเธอได้มอบเครื่องรางนี้ให้กับแดเนียลก่อนภารกิจแรกของเขาผ่านประตูมิติไปยังอะบีดอส คู่หมั้นของเธอ นักวิทยาศาสตร์ชื่อเออร์เนสต์ ลิตเติลฟิลด์ (รับบทโดยคีน เคอร์ติสและพอล แม็คกิลเลียน ) เป็นมนุษย์คนแรกที่เดินทางผ่านประตูมิติ นับตั้งแต่ชาวอียิปต์โบราณฝังมันไว้ แคทเธอรีนและเออร์เนสต์พลัดพรากจากกันด้วยเหตุการณ์ประตูมิติในปี 1945 และได้กลับมาพบกันอีกครั้งในตอน " The Torment of Tantalus " ซึ่งเป็นตอนกลางฤดูกาลที่ 1 แต่เออร์เนสต์ก็ไม่ปรากฏตัวอีกเลยในซีรีส์ (แม้ว่าจะมีการกล่าวถึงเขาในตอน " There But For the Grace of God " ของฤดูกาลที่ 1 และ " The Fifth Race " ของฤดูกาลที่ 2) แคทเธอรีน แลงฟอร์ด ปรากฏตัวอีกครั้งในจักรวาลและช่วงเวลาอื่น ๆ ในตอน " There But For the Grace of God " และ " 1969 " การเสียชีวิตของเธอถูกประกาศในตอน " Moebius, Part 1 " ของฤดูกาลที่ 8 เธอทิ้งเอกสารและสิ่งประดิษฐ์ส่วนตัว รวมถึงเหรียญทองคำของรา ให้กับแดเนียล แจ็กสัน
Catherine Womack, played by Chelah Horsdal (seasons 8–9) – A US Airforce officer of unknown rank. She takes over from Major Erin Gant as the helmsman of the Prometheus in season 8's in "New Order, Part 2" and is last seen in "Full Alert".
Paul Emerson, played by Matthew Glave (seasons 9–10) – Introduced as the commander of the Odyssey in season 9's "Off the Grid", rescuing SG-1 and aiding in their mission to take back all stolen Stargates from Ba'al's ship. In the next episode, "The Scourge", he again rescues SG-1 and a team of the IOA from the Gamma Site. In the season 9 finale, "Camelot", Emerson teams up the Odyssey with many other ships of the Jaffa, the Asgard and the Lucian Alliance to battle the Ori battlecruisers which come through an open Supergate, and the Odyssey takes much damage. Emerson continues serving as the commander of the Odyssey in season 10 but is killed by a member of the Lucian Alliance in "Company of Thieves".
Erin Gant, played by Ingrid Kavelaars (seasons 6–7) A US airforce Major and the first known helmsman of the Prometheus under Colonels Ronson and Kirkland as well as General George Hammond. She is first seen in "Memento" and last seen in "Lost City".
เควิน มาร์คส์ รับบทโดย มาร์ติน คริสโตเฟอร์ (ซีซั่น 9–10) – เจ้าหน้าที่กองทัพอากาศสหรัฐฯ บนยาน โพรมีธี อุสปรากฏตัวครั้งแรกในตอน " Avalon Part 1 " ช่วยมิทเชลและทีม SG-1 ค้นหาและเข้าถึงฐานที่มั่นโบราณที่อะวาลอน มาร์คส์ยังปรากฏตัวในภารกิจคาลาณาในตอน " Beachhead " และการค้นหายานแม่ที่ซ่อนอยู่ของเกรักในวงโคจรของดวงจันทร์โลกในตอน " Ex Deus Machina " หลังจากนั้นเขาได้รับการเลื่อนตำแหน่งเป็นกัปตันหลังจากการทำลายยานโพรมีธีอุสในตอน " Ethon " มาร์คส์ได้รับการเลื่อนยศเป็นพันตรีและกลายเป็นเจ้าหน้าที่ประจำสะพานเดินเรือบนยานโอดิสซีซึ่งเขาได้เข้าร่วมปฏิบัติการต่างๆ ในตอน " Camelot ", " The Scourge " , " Flesh and Blood ", " Talion " และ " Unending " ภารกิจสุดท้ายของมาร์คส์ ในทีม SG-1บนยานโอดิสซีคือการกู้คืนหีบแห่งความจริงจากกาแล็กซีบ้านเกิดของโอริในตอนStargate: The Ark of Truthเขาได้รับตำแหน่งเจ้าหน้าที่ประจำสะพานเดินเรือที่คล้ายกันบนยานอพอลโลในตอน " Be All My Sins Remember'd " ของแอต แลนติสและย้ายไป ประจำการบนยาน เดดาลัส ใน ตอน " Search and Rescue " ในตอน " The Daedalus Variations " เทย์ลาได้กล่าวถึงว่ามาร์คส์ได้ให้การฝึกอบรมเบื้องต้นเกี่ยวกับระบบของเรือรบแก่เธอ ซึ่งเป็นข้อเสนอที่โรนอน เด็กซ์ปฏิเสธ เขาปรากฏตัวครั้งสุดท้ายบนยานจอร์จ แฮมมอนด์ภายใต้การบังคับบัญชาของซาแมนธา คาร์เตอร์ใน ตอน "Air" ของ Stargate: Universeนอกเหนือจากผู้บัญชาการของแต่ละยานแล้ว มาร์คส์เป็นตัวละครที่ปรากฏตัวบ่อยที่สุด เป็นลูกเรือคนแรกที่ปรากฏตัว และเป็นตัวละครเพียงคนเดียวที่แสดงให้เห็นว่าประจำการอยู่บนยานอวกาศหลัก ทุกลำ ของซีรีส์ Stargate
Lionel Pendergast, played by Barclay Hope (seasons 8–9) – Replaces Colonel William Ronson as commander of the Prometheus and is first seen in "New Order Part 2" patrolling Earth. Pendergast intercepts Thor's Asgard mothership Daniel Jackson after its arrival in Earth's solar system and destroys a Trust-controlled Al'kesh in "Full Alert". He is leading the search of Osiris's cloaked Al'kesh in Earth's orbit in "Endgame" and transports the Stargate and SG-1 aboard before the enemy vessel enters hyperspace. In season 9's "Beachhead", Pendergast delivers a Mark IX warhead to an Ori beachhead and maintains the ship's position during the mission despite Jaffa and Ori interruption. Pendergast dies during the destruction of the Prometheus by an Ori satellite weapon in "Ethon"; he remained aboard to beam his crew off the ship, thus saving 76 lives.
William Ronson, played by John Novak (seasons 6–7) – A USAF Colonel and Commander of the Prometheus during seasons 6 and 7.
Ian Davidson played by Fulvio Cecere (season 10) A USAF Colonel who takes command of the Odyssey in the Season 10 episodes, "Family Ties" and "Dominion" following the death of his predecessor, Colonel Paul Emerson.
Abydonians
The Abydonians are the people whom Colonel O'Neill's team encounters on another planet in the Stargate film. They are the slaves of the alien Ra and are descendants from ancient Egyptians brought through the Stargate to mine the fictional mineral naqahdah. The film gives the location of their homeworld—named Abydos in SG-1's pilot episode "Children of the Gods"—as the Kaliem galaxy "on the far side of the known universe" in the film; and as the closest planets to Earth in the Stargate network in "Children of the Gods". In the film, O'Neill and Daniel Jackson inspire the Abydonians and their leader, Kasuf, to rise up against Ra. The military personnel return to Earth, while Daniel falls in love with Kasuf's daughter Sha're and remains behind. In "Children of the Gods", set a year after the film, the Goa'uld Apophis attacks Abydos, abducting Sha're and her brother Skaara to serve as hosts for his queen Amonet and son Klorel. In season 6's "Full Circle", the Goa'uld Anubis destroys Abydos, but Oma Desala helps its entire population Ascend.
Erick Avari played Kasuf in the film and the television series. Kasuf (Arabic for 'eclipse'),[72] played by Erick Avari (film, seasons 2–4) and Daniel Rashid (Origins) – The leader of the Abydonians in the film, and the father of Sha're and Skaara. In season 2's "Secrets", one year after Apophis's kidnapping of Kasuf's children in "Children of Gods", Daniel returns to Abydos and learns that Sha're has become pregnant by Apophis. Kasuf helps Daniel to hide the newborn child from Heru-ur. Kasuf returns in season 3's "Forever in a Day" when his daughter Sha're dies. Kasuf last appears in season 4's "Absolute Power", introducing SG-1 to his rapidly aged grandchild, Shifu. In the prequel web series Origins, it is shown that Kasuf served Aset in Abydos and met Catherine Langford and her group when a German officer named Brucke first activated the Stargate in a warehouse near Giza on Earth. Upon Ra's return to Abydos, Aset made Kasuf the leader of the village of Nagada.
ชาเร (ชาอูริในภาพยนตร์) รับบทโดยมิลี อาวิตัล (ภาพยนตร์) และไวติอาเร บันเดรา (ซีซั่น 1–3) – ลูกสาวของคาซูฟ ผู้ซึ่งต่อมาได้เป็นภรรยาของแดเนียล แจ็กสัน และเป็นร่างทรงของโกอาอูลด์ อาโมเน็ต (หรือเขียนว่า อามาอูเน็ต) ในภาพยนตร์ คาซูฟผู้เป็นพ่อได้มอบชาเรให้แดเนียล แจ็กสันเป็นของขวัญ และถึงแม้ว่าในตอนแรกเขาจะปฏิเสธที่จะรับเธอเป็นภรรยา แต่ในที่สุดพวกเขาก็ตกหลุมรักกัน หลังจากแต่งงานได้หนึ่งปีในตอน "Children of the Gods" อะโพฟิสได้จับชาเรเป็นตัวประกันและบังคับให้เธอเป็นร่างทรงของราชินีซิมไบโอต อาโมเน็ต โดยที่เธอไม่เต็มใจ แดเนียลได้พบกับชาเรที่กำลังตั้งครรภ์อย่างมากในระหว่างการไปเยือนอะบีดอสในตอน " Secrets " ของซีซั่น 2 เธอซ่อนลูกของเธอ ซึ่งเป็นฮาร์ซีซิสที่เกิดจากอะโพฟิส จากเฮรู-อูร์เนื่องจากอาโมเน็ตอยู่ในสภาวะสงบในระหว่างการตั้งครรภ์ เมื่อชาเรให้กำเนิดบุตรชายชื่อชิฟูอาโมเน็ตเข้าควบคุมร่างของชาเร แต่เก็บข้อมูลเกี่ยวกับเด็กไว้เป็นความลับ อาโมเน็ตกลับมารับเด็กอีกครั้งในซีซั่น 3 ตอน " Forever in a Day " โดยส่งเขาไปยังดาวเค็บพร้อมกับนางกำนัลคนหนึ่งของเธอ ระหว่างการต่อสู้ที่อะบีดอสในตอน " Forever in a Day " อาโมเน็ตโจมตีแดเนียลด้วยอุปกรณ์ในมือของเธอภายในเต็นท์ และทีลค์ใช้ ไม้เท้าของเขาฆ่าชาเรเพื่อป้องกันไม่ให้แดเนียลตาย
สกาอารา รับบทโดยอเล็กซิส ครูซ (ภาพยนตร์, ซีซั่น 1–3, 6) – บุตรชายของคาซูฟและน้องชายของชาเร ในภาพยนตร์ สกาอาราและเพื่อนๆ ช่วยเหลือโอ'นีลและทหารของเขาในการเอาชนะราในตอน "Children of the Gods" สกาอาราถูกอะโพฟิส จับเป็นตัวประกัน และถูกบังคับให้เป็นร่างสถิตของคลอเรล บุตรชายที่เป็นซิมไบโอตของเขาโดยไม่เต็มใจ ทีม SG-1 บุกโจมตีเรือของคลอเรลในตอนจบซีซั่น 1 " Within the Serpent's Grasp " แต่สกาอาราสามารถออกมาได้เพียงช่วงสั้นๆ หลังจากที่โอ'นีลยิงคลอเรลเพื่อป้องกันไม่ให้เขาฆ่าดร.แจ็กสัน บราแทคก็ชุบชีวิตเขาขึ้นมาในโลงศพ สกาอาราและอะโพฟิสหนีไปก่อนที่เรือของพวกเขาจะถูกทำลายในตอนเปิดซีซั่น 2 " The Serpent's Lair " ในตอน " Pretense " ของซีซั่น 3 ยานของคลอเรลตกบน ดาวเคราะห์บ้านเกิด ของชาวโทลลันขณะหลบหนีจาก กองกำลังของ เฮรู-อูร์ด้วยความช่วยเหลือจากเทคโนโลยีของชาวโทลลัน สกาอาร่าจึงควบคุมร่างกายได้อีกครั้งและเข้าร่วมการทดสอบของชาวโทลลันเพื่อแยกซิมไบโอตออกจากร่างกาย สกาอาร่าชนะการทดสอบและในที่สุดก็กลับไปยังอะบีดอส ที่ซึ่งเขาได้พบกับ SG-1 เป็นครั้งสุดท้ายในตอนจบของซีซั่น 6 " Full Circle " สกาอาร่าช่วย SG-1 ในการค้นหาดวงตาแห่งราก่อนที่อนูบิสจะพบมันบนอะบีดอส สกาอาร่าได้รับบาดเจ็บสาหัสระหว่างการต่อสู้กับจาฟฟาของอนูบิส แต่ก็ฟื้นคืนชีพได้ด้วยความช่วยเหลือของโอมา เดซาลา
Oma Desala ("Mother Nature"), played by Carla Boudreau (season 3) and Mel Harris (seasons 5, 8) – An Ascended being who goes against the ways of the Ancients. It is unclear if she is an Ancient herself, as the Ancients Orlin and Merlin give different accounts of knowing Oma. Oma is responsible for once helping the fallen System Lord Anubis, the main SG-1 antagonist between seasons 5 through 8, ascend. Although the Ancients banished her for her actions, Oma remains convinced of her responsibility to guide those beneath to the "Great Path" of enlightenment, even if this interferes in the lower planes of existence. Oma therefore only guides individuals, leaving the final decision to travel the great path to them. SG-1 first encounters Oma Desala on their search for Shifu in season 3's "Maternal Instinct". Oma eventually guides Shifu to ascension in season 4's "Absolute Power". Oma is involved in Daniel Jackson's ascension in "Meridian" and forceful de-ascension in "Fallen", and also helps the entire Abydonian population ascend after Anubis's attack in season 6's "Full Circle". Oma Desala last appears in season 8's "Threads", sacrificing herself to enter an eternal battle with Anubis to prevent him from wreaking further havoc on the galaxy.
Note: Mel Harris's teenage son was a Stargate SG-1 fan and introduced her to the series. The Stargate producers offered her the part when she was visiting the set while in Vancouver for another job. The best direction she got for playing this almost "omniscient" character was that she was not like others and was a "being" of her own.[73]
Asgard
The Asgard are a benevolent race whose former homeworld is the planet Othala. According to the mythology of Stargate, they gave rise to Norse mythology on Earth and inspired accounts of the Roswellgrey aliens. The Asgard can no longer reproduce and perpetuate themselves by transferring their minds into new clone bodies as necessary. Extremely advanced technologically, the threat of their intervention shields many planets in the Milky Way from Goa'uld attack, including Earth.
Apophis, played by Peter Williams (seasons 1–6, 8) – A System Lord and the main villain for most of the first four seasons of Stargate SG-1. Based on the god Apep of Egyptian mythology, the character gained power after Ra's death in the film and commands a raid on Earth and Abydos in "Children of the Gods", leading to the restart of the Stargate Program. His then First Prime, Teal'c, defects from his army afterwards. Apophis's standing amongst the System Lords is severely diminished after a failed full-scale assault on Earth in season 2's "The Serpent's Lair". Apophis is killed and eventually revived by the Goa'uld Sokar in season 3. After defeating Sokar's massive fleet and army in season 3's "The Devil You Know", Apophis becomes the most powerful Goa'uld in the galaxy. Despite his death aboard his Replicator-infested ship in season 5's "Enemies", Apophis appears in visions and alternate timelines in season 6's "The Changeling", season 8's "Moebius" and Stargate: Continuum. In the latter, he is the last System Lord to resist the rule of Ba'al who kills Apophis shortly before his attempted takeover of Earth.
Bra'tac, played by Tony Amendola (seasons 1–3, 5–10) – A Jaffa warrior, former First Prime of the Goa'uldSystem LordApophis, and Teal'c's former teacher and closest friend.[82] His surviving to an age of retirement as First Prime is a noted rarity, and affords him a significant amount of respect among Jaffa. Bra'tac is over 133 years of age at the beginning of the series, a fact he reminds SG-1 of on multiple occasions.[83] He is introduced in season 1's "Bloodlines" and is one of the most frequently recurring characters on Stargate SG-1. Bra'tac, having been one of the first Jaffa to doubt the Goa'uld as gods, has been an outcast among the Jaffa since at least season 1. Bra'tac was also the one who initially influenced Teal'c to doubt the Goa'uld as well. Bra'tac helps Teal'c and SG-1 on many missions. He is initially suspicious of the humans, particularly O'Neill. This dynamic is played out somewhat comically, but Bra'tac slowly learns to trust and respect humans.[84] In seasons 1 and 2, Bra'tac helps to save Teal'c's son, Rya'c from several threats and becomes a guardian to him. During a mission to find the Harcesis child (Shifu) on Kheb in season 3's "Maternal Instinct", Bra'tac is presented with the idea of Ascension but in the end decides against this possibility for himself. At the end of season 6, Bra'tac and Teal'c are both badly wounded during a Jaffa meeting and lose their symbiotes, surviving only by taking the new drug Tretonin. Bra'tac is the primary instigator of the Jaffa Resistance, a rebellion aimed at overthrowing the Goa'uld and establishing the freedom of all Jaffa. At the end of season 8, Bra'tac and Teal'c convince the other members of the Jaffa Rebellion to attack Dakara in an ultimately successful mission. The Jaffa obtain freedom, and Bra'tac receives a position of honor. He becomes a member of the High Council, the governing body of the new Free Jaffa Nation but still stays loyal to Stargate Command. Some time after the destruction of Dakara by the Ori, leaders of the Free Jaffa Nation meet to consider the future, but Bra'tac and Teal'c are badly injured during an ambush by a former enemy of Teal'c. When they get nursed back at the SGC, Bra'tac tells Teal'c that he is like a son to him.
Lucian Alliance
The Lucian Alliance is an interstellar group of human smugglers and mercenaries that have joined together from many different human-settled worlds across the Milky Way Galaxy to fill the power vacuum created by the demise of the Goa'uld, and have obtained and modified Goa'uld technology for their own use. When their trade partner Vala Mal Doran does not keep an agreement in their first appearance in season 8's "Prometheus Unbound", she and Daniel are placed on a Lucian Alliance wanted list. The Lucian Alliance is first referred to by name in season 9's "The Ties That Bind" and reappears as a recurring foe in seasons 9 and 10. The Lucian Alliance story arc is continued in Stargate Universe. Producer Joseph Mallozzi explained in retrospect, "Much of the Lucian Alliance we saw in SG-1 was inept and, dare I say it, a bit goofy. They fit in with SG-1's lighter, more high adventure-driven tone but would have stood out (and not in a good way) in the new series [Stargate Universe]. As a result, I was initially leery at the prospect of introducing them to SGU but, as so often happened over the course of my many years in the franchise, I trusted in Brad [Wright] and Robert [C. Cooper] and, in the end, that trust was rewarded with a terrific story element that not only succeeded as planned [...] but offered up plenty of interesting story material for future episodes [of Stargate Universe]. The Alliance was always envisioned as a loose coalition of mercenary groups so it made sense that certain factions would have been more capable and threatening than others."[85]
Jup and Tenat, played by Geoff Redknap and Morris Chapdelaine (seasons 8–10) – Oranian minor members of the Lucian Alliance who make their first appearance in season 8's "Prometheus Unbound", aiming to trade a case of weapons-grade-refined naqahdah to Vala in exchange for the stolen Prometheus. After Daniel foils the plot, the Alliance sends Jup and Tenat to capture Vala in season 9's "The Ties That Bind", but Mitchell and Teal'c double-cross them. Upon meeting and recognizing Mitchell as a scam artist aboard a Lucian Alliance ship in season 10's "Company of Thieves", Tenat asks for a part of the spoils and is double-crossed again, dying in a self-induced firefight against Netan's mothership. Jup last appears in "Bounty" as one of several bounty hunters attempting the capture of SG-1 on Earth, but another bounty hunter kills him.
Prior, played by Doug Abrahams (seasons 9–10) – A one-eyed Prior introduced in "Crusade", who cures Tomin of his limp and later informs him of being unable to father children. He is on-board one of the Ori battlecruisers invading the Milky Way in "Camelot" and is present during Adria's birth in season 10's "Flesh and Blood", informing Vala and Tomin of her divine purpose. The Prior nearly kills Daniel Jackson, but he and Vala are rescued at the last second by the Odyssey. In "The Quest", he accompanies Adria in the search of the Sangraal. He is captured in Stargate: The Ark of Truth during an attempt to convince Earth to surrender or face destruction. After the Ark of Truth is retrieved from the Ori home galaxy, the Prior is exposed to it, spreading the truth to all of the Ori followers in the Milky Way galaxy and ending their crusade.
Replicators
The Replicators are a potent mechanical life-form who use a quiron-based nanotechnology. They strive to increase their numbers and spread across the universe by assimilating advanced technologies. They are hostile to all other life and are opposed primarily by the Asgard. In the episode "Unnatural Selection", the Replicators had used technology extracted from their Android creator to make shapeshifting, human-form Replicators. While standard Replicators are resistant to energy weapons but can be destroyed by projectile weapons, human-form Replicators are resistant to projectile weapons as well, thanks to the change in their nature from large blocks to smaller units the size of organic cells (cell blocks). In the episode "New Order (Part 2)", an Ancient weapon called the Replicator Disruptor was developed by O'Neill while he still had the knowledge of the Ancients in his mind. It works by blocking the cohesion between the blocks that make up the Replicators. The Replicators in the Milky Way galaxy were wiped out by the Dakara Superweapon in the two-part episode "Reckoning" at the climax of Season 8. It has been indicated that the Asgard used the same technology to defeat the Replicators in their own home galaxy as well.
Kull Warriors (also known as Supersoldiers), played by Dan Payne and Alex Zahara (seasons 7–8) – Creatures created by Anubis for use as his personal army against minor Goa'uld. The Kull Warriors first appear in the two-part episode "Evolution", where seemingly none of the weapons of SG-1 or the Jaffa are effective against them. In "Death Knell", Samantha Carter and Selmak develop a prototype weapon designed to counteract the energy animating the Kull Warriors. After the apparent defeat of Anubis in "Lost City", Ba'al gains control of the Supersoldiers and thus a significant advantage over his rivals. As a result, in the episode "New Order" the other System Lords approach Earth for a new military arrangement. A simulated invasion of Stargate Command by Kull Warriors is the main premise of the episode "Avatar". In "Threads", the remaining Kull Warriors become aimless and confused after Anubis' final defeat, and are easily dispatched. The Kull Warriors make one appearance in the Stargate Atlantis episode "Phantoms", where they are hallucinations caused by a Wraith device. The Kull Warriors were conceived as a much more powerful adversary than the Jaffa, and one that would be more palatable to fight.[96] The art department developed the final concept while "Evolution" was written; in the original plans, the face looked a lot like that of the Borg, which eventually developed into the idea of the fiber-optic network that ran over the skull. The motion of the Kull Warrior was deliberately styled to be unique and not resemble other robotic characters, such as RoboCop, the Borg, or human-form Replicators.[97] Dan Payne described the suit as the most functional, mobile full-body unit he has ever been in. It took 15 to 30 minutes to get him into the suit, making him about seven feet tall due to the helmet and the boots.[98]