Caitlin Marie Lotz (born December 30, 1986) is an American actress, martial artist, dancer and singer. She has portrayed Stephanie Horton in the AMC series Mad Men, Officer Kirsten Landry in the MTV mockumentary series Death Valley (2011), Annie in The Pact (2013), and Sara Lance/The Canary/White Canary in The CW's Arrowverse television franchise.