Stargate: Atlantis (2004–2009)
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Doppelganger 

While exploring a new planet, Sheppard started to watch a strange crystal. He doesn't know why, but he had to touch it. Back on Atlantis, everybody but him started to have some bad nightmares.

Director:

Robert C. Cooper

Writers:

Brad Wright (created by), Robert C. Cooper (created by) | 1 more credit »
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Cast

Episode complete credited cast:
Joe Flanigan ... Lt. Colonel John Sheppard
Amanda Tapping ... Colonel Samantha Carter
Rachel Luttrell ... Teyla Emmagan
Jason Momoa ... Ronon Dex
David Hewlett ... Dr. Rodney McKay
Jewel Staite ... Dr. Jennifer Keller
Claire Rankin ... Dr. Kate Heightmeyer
David Nykl ... Dr. Radek Zelenka
Kavan Smith ... Major Evan Lorne
Linda Ko ... Med-tech
Yee Jee Tso ... Technician
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Storyline

After John Sheppard is drawn to and touches a crystalline substance on a planet he and his team are exploring, several members of the expedition begin to have nightmares. Teyla dreams that Sheppard turns into a Wraith and feeds on her; and Dr. Jennifer Keller dreams she is called to sick bay to treat Teyla who is in excruciating pain while Sheppard looks on, apparently enjoying her suffering. Sheppard himself is fine but when the nightmares begin to spread to other members of the crew and one dies as a result of what happens in her dream, finding a solution takes on an even greater sense of urgency. Written by garykmcd

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Certificate:

TV-PG | See all certifications »
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Details

Country:

USA | Canada

Language:

English

Release Date:

19 October 2007 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs

Runtime:

Sound Mix:

DTS (5.1 surround)| Dolby Digital (Dolby 5.1)

Color:

Color

Aspect Ratio:

16:9 HD
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Did You Know?

Trivia

Before the opening credits, McCay asks the group if they know how many addresses are in the Atlantis database that have no accompanying description. Sheppard replies "42". This is a reference to "The Hitchhiker's Guide to the Galaxy". See more »

Goofs

Dr Keller opens the drug cabinet before she turns the key to unlock it. See more »

Quotes

Lt. Colonel John Sheppard: Looks like ones of those toys you played with as a kid.
Dr. Rodney McKay: Commodore 64?
Ronon Dex: Triple-barrel shotgun?
Lt. Colonel John Sheppard: A kaleidoscope.
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Connections

References The Hitchhiker's Guide to the Galaxy (1981) See more »

Soundtracks

Main Title
Composed by Joel Goldsmith
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