Born in London, but raised in California, Catherine Bell started acting as a child in TV commercials. She dropped out of UCLA biology studies to become a model in Japan. Catch her as Isabella Rosselini's nude body double in "Death Becomes Her" (1992).

Bell has also acted in the Sci-Fi Channel miniseries, The Triangle, presented in December 2005, where she played the role of an ocean engineer.

In 2006, she was nominated in Saturn Award of Academy of Science Fiction, Fantasy & Horror Films for Best Supporting Actress on Television (The Triangle).

Bell was the grand marshal of the NASCAR Nextel Cup Series race at Dover International Speedway on June 3, 2007.

Bell has attested to attaining the Scientology state of Clear." She has supported Scientology's Hollywood Education and Literacy Project. In December 2005, Bell helped promote the gala opening of Scientology's controversial "Psychiatry: An Industry of Death" Museum.

In February 2006, Bell appeared in a Scientology music video called "United". The film includes cameo performances by Isaac Hayes, Erika Christensen, Jenna Elfman and Lynsey Bartilsonand promotes human rights with a rap song.