<Tr> <Th> Spouse (s) </Th> <Td> Ez Mitchell </Td> </Tr> <Tr> <Th> Children </Th> <Td> </Td> </Tr> <P> Keegan Connor Tracy (born Tracy Armstrong; December 3, 1971) is a Canadian actress . She is known for her roles as Kat Jennings in the film Final Destination 2 (2003), as the Blue Fairy in the ABC fantasy television series Once Upon a Time, as the scheming and flaky Audrey Malone in the Showtime television series Beggars and Choosers, and Miss Watson in the A&E television series Bates Motel . </P> <P> Other work includes roles on the television series Stargate SG - 1, Jake 2.0, The 4400, Psych, Battlestar Galactica, Supernatural, the film White Noise, and the Descendants television film and its sequel, "The Magicians" on Syfy </P>

Who plays the blue fairy on once upon a time