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Identity is the eighteenth episode of the fifth season of Stargate Atlantis, and the ninety-eighth episode overall.
Starring: Joe Flanigan (Lieutenant Colonel John Sheppard), Amanda Tapping (Colonel Samantha Carter), Rachel Luttrell (Teyla Emmagan), Jason Momoa (Ronon Dex), Paul McGillion (Dr. Carson Beckett), Jewel Staite (Dr. Jennifer Keller), Robert Picardo (Agent Richard Woolsey), David Hewlett (Dr. Rodney McKay)
Guest Starring: Linda Ko (Marie), David Nykl (Dr. Radek Zelenka), Paul McGillion (Dr. Carson Beckett), Paul Herbert (II) (Technician), Karin Konoval (Second in Command), Jonathan Holmes (II) (Magistrate), Ron Selmour (Jannick), Dawn Olivieri (Neeva Casol), Todd Thomson (Bordal), Rick Wong (Dr. McBride)