David Cassidy spoke of his absence from Katie's life, saying in February I wasn't her father. I was her biological father but I didn't raise her. She has a completely different life. I'm proud of her. It's hard for me to even accept how old she is now. Cassidy has continued to guest appear in television shows such as Celebrity Apprentice 4 , Listen Up! In , Cassidy appeared in a recurring role on The WB 's series 7th Heaven over the course of four episodes. Cassidy has gone on to have notable supporting roles in films Click ,  Taken and Live!
The film was released on December 15, to negative reviews from critics. Cassidy played the role of Ruby , a demon. Making her debut in the show's third season, Cassidy appeared in six episodes. In , though her character returned for the show's fourth season, Cassidy was replaced by actress Genevieve Cortese. Cassidy portrayed the role of Patricia "Trish" Wellington, a bride-to-be.
The series centered on a group of family and friends who gather for a wedding on an island known for its sinister past full of gruesome murders. In each episode, at least one character is killed off. Cassidy and her fellow cast members were not told about their characters' deaths until the day they received a script.
The series premiered on April 9, to Despite ratings failing to maintain the pilot's success, CBS aired the remainder of the series with the series finale airing on July 11, Despite mixed reviews, Cassidy's performance was praised by critics and was cited as "the best thing about the Melrose reboot" by New York magazine.
Cassidy portrays the false protagonist Kris Fowles; a high school student who becomes a victim to Freddy Krueger. The film, which also stars Leighton Meester and Selena Gomez , follows three friends who pose as wealthy socialites while on holiday in Monte Carlo. Cassidy portrayed Juliet Sharp , who attends Columbia University and sets out to ruin the life of the show's central character Serena van der Woodsen.
Cassidy made her first appearance in the season premiere and went on to appear in over 11 episodes of the season. She plays Suki, a young woman with dissociative identity disorder.
On July 23, , it was announced that Cassidy had signed a deal with Warner Bros. She was 15 at the time, five years younger than her dad when he recorded his version. It was the only song she released. The couple announced their engagement on June 5,