Stargate Atlantis backdrop

Stargate Atlantis S4E4 — Doppelganger

7.1

Stargate Atlantis•Season 4•Episode 4

Doppelganger

7.1/10 · 1,090 votesOct 18, 200743 min

Ranked #19 of 20 in Season 4•−0.8 vs season avg

During an off-world mission Colonel Sheppard unknowingly becomes host to an alien entity, which infects others in Atlantis and afflicts them with terrifying nightmares.

Directed byRobert C. Cooper

Written byRobert C. Cooper

Previous episodeE3 · Reunion Next episodeE5 · Travelers

Seasons5

Cast5

Joe Flanigan

Joe Flanigan

John Sheppard

David Hewlett

David Hewlett

Rodney McKay

Rachel Luttrell

Rachel Luttrell

Teyla Emmagan

Amanda Tapping

Amanda Tapping

Samantha Carter

Jason Momoa

Jason Momoa

Ronon Dex

Crew2

Robert C. Cooper

Robert C. Cooper

Writer

Robert C. Cooper

Robert C. Cooper

Director

Discussion

0 comments

Join the conversation

Share your take and reply to other fans.

No comments yet

Be the first to share your thoughts on this episode.

Episode Summary

"Doppelganger" is episode 4 of Stargate Atlantis season 4. It scored 7.1/10 from 1,090 votes, ranking #19 of 20 episodes this season (season average 7.9). Directed by Robert C. Cooper and written by Robert C. Cooper, it aired on October 18, 2007.

Next: E5 · Travelers Best of Season 4