From Wikipedia, the free encyclopedia. Sarah Gadon (born April 4, 1987) is a Canadian actress. She has had roles in David Cronenbergs A Dangerous Method and Cosmopolis. She has guest starred in a number of notable television series including Are You Afraid of the Dark?, Dark Oracle, Doc, In a Heartbeat, La Femme Nikita, Life with Derek, and Mutant X. She has voice-acted for Mattimeo, My Dad the Rock Star, Ruby Gloom, Total Drama, and Wayside.