Sarah Lynn Gadon (born April 4, 1987) is a Canadian actress. She first gained recognition for her performances in David Cronenberg's films A Dangerous Method (2011) and Cosmopolis (2012). She has guest starred in a number of television series, including Are You Afraid of the Dark? (1999), In a Heartbeat (2000), Mutant X (2002), and Dark Oracle (2004). She has also worked as a voice actress on various productions.