Keegan Connor Tracy

Keegan Connor Tracy (born Tracy Armstrong; December 3, 1971) is a Canadian actress who is best known for her roles as Kat Jennings in the 2003 supernatural horror film Final Destination 2 and as Miss Watson on the A&amp;E thriller drama series Bates Motel in 2013.

She is also best known for her role as The Blue Fairy on the ABC fantasy-drama series Once Upon a Time from 2011 to 2013.