Spot the Impostor/Quotes

""He could be any one of us! He could be in this very room! He could be you! He could be me! He could even be-" [Blam!]"

- Team Fortress 2, "Meet The Spy"

"Jack: How do I know you're the real Daniel? Daniel: Because... Jack: (shrugs) ... Yeah, okay."

- Stargate SG-1, "Spirits"