Cassidy was born in Los Angeles, California, the daughter of '70s pop idol David Cassidy and former model Sherry Benedon (née Kaltschnee); the two had an "on-again, off-again" relationship during the 1970s-1980s, resulting in Katie's birth, fifteen years after first meeting. Cassidy's paternal grandparents were actors Jack Cassidy and Evelyn Ward. She grew up in Calabasas, California with her Read more...

Cassidy started community theater when she was in elementary school. She modeled for Abercrombie and Fitch and Rock and Republic's line in 2004, which helped open the door to an acting career. Her mother, Sherry, would not allow Katie to act professionally until completing her high school education. After high school, Katie was planning to attend NYU's Tisch School of Performing Arts, but instead Read more...

Katie Cassidy (born November 25, 1986) is an American singer and actress perhaps best known for starring in the remake of Black Christmas.