The episode was written by producer Ally Musika, and directed by Ken Whittingham. This was Musika's sixth writing credit, and Whittingham's seventh directing credit.^[1]

In its original American broadcast, "Seth Green Day" was seen by an estimated 1.83 million household viewers with a 1.1 in the 18–49 demographics. This means that 1.1 percent of all households with televisions watched the episode.^[2] This was a slight increase in viewership with the previous episode, which was watched by an estimated 1.77 million household viewers with a 1.1 in the 18–49 demographics.^[3]

"Seth Green Day" received positive reviews from critics. Ahsan Haque of IGN gave the episode a "great" 8.5 out of 10 and wrote, "Overall this was yet another highly entertaining episode of Entourage. While it may not be as funny or as memorable as some of the more recent outings, the storyline was advanced nicely and watching Vince face some real challenges throughout the season has been a nice change of pace for the character."^[4]

Josh Modell of The A.V. Club gave the episode a "B–" grade and wrote, "Anyway, strangely, we're back to "real life" in Entourage land, which means that Vince is actually a working actor – and having some problems with a Deutsch director named Werner. But guess what? You already knew that, because Vince's problems this week were the same as Vince's problems last week–his lines are being taken away in the service of a film that he's not the star of. At least we got a funny screening-room scene between Stellen Skarsgard and Vince, in which the director tells him that he tilts his head and has a "lip quiver." All ridiculous shit that probably happens in Hollywood every day. It wasn't that compelling here, but slightly interesting/funny at least."^[5]Alan Sepinwall wrote, "Well, what do you know? That was almost an entire episode of Entourage that I found entertaining."^[6]

Trish Wethman จากTV Guideเขียนว่า "หลังจากโน้มน้าว Vince ว่าท่าทางบนหน้าจอของเขาทำให้การแสดงของเขาเสียสมาธิ ความมั่นใจของ Vince ก็สั่นคลอนอย่างเห็นได้ชัด ถ้าดูจากตัวอย่างแล้ว ดูเหมือนว่าสถานการณ์ของพระเอกของเราจะไม่ดีขึ้นในเร็วๆ นี้" ^{[ 7 ]} Rob Hunter จากFilm School Rejectsเขียนว่า "ดูเหมือนว่า Vince ที่หยิ่งผยองและมั่นใจในซีซั่นก่อนๆ จะหายไปนานแล้ว เพราะคำพูดของ Verner เกี่ยวกับการเอียงศีรษะและริมฝีปากที่สั่นทำให้ Vince ตกใจ Smokejumpers ถูกสร้างขึ้นมาเพื่อเป็นผลงานการกลับมาของ Vince แต่ฉันไม่คิดว่าเขาจะถ่ายทำภาพยนตร์เรื่องนี้จบได้ หรือแม้แต่จะได้รับการยอมรับจากมัน" ^{[ 8 ]}