Katherine Evelyn Anita "Katie" Cassidy (born November 25, 1986) is an American actress. She portrayed Laurel Lance/Black Canary in a lead role in the first four seasons of Arrow, and also special guest starred in its fifth season. She also special guest starred in season one of The Flash and in season one of DC's Legends of Tomorrow. She also voiced her character in a major role in season two of Vixen.
She currently portrays the Earth Two equivalent Laurel Lance/Black Siren in a special guest starring role in season two of The Flash, and in the fifth season of Arrow. She was promoted back to series regular for the show's sixth season, this time as Black Siren.
Cassidy signed a deal that would make her a series regular across all of the Berlanti shows (like Wentworth Miller and John Barrowman). As of 2016, she has the freedom to move across season five of Arrow, season three of The Flash and season two of DC's Legends of Tomorrow.
Superhero Fight Club shorts
DC's Legends of Tomorrow
- Katie Cassidy is the daughter of David Cassidy and the niece of Patrick Cassidy. Her father portrayed Sam Scudder/Mirror Master on the 1990 Flash TV series. Her uncle portrayed Leslie Luckabee on Lois & Clark: The New Adventures of Superman and Henry Small on Smallville.
- Katie Cassidy and Tyler Hoechlin used to date while in high school. They even went to the prom together.