Catherine Mary Stewart is a Canadian actress and model who was born on April 22, 1959, in Edmonton, Alberta, Canada. She began her career as a model before transitioning to acting in the early 1980s.

Stewart's breakthrough role came in 1980, when she starred in the sci-fi film "The Last Starfighter." She followed this up with a string of roles in other popular films such as "Night of the Comet" (1984), "Weekend at Bernie's" (1989), and "The Apple" (1980).

Stewart also made numerous TV appearances throughout her career, including on shows such as "Days of Our Lives," "Knight Rider," and "The Outer Limits." She also starred in several made-for-TV movies, including "Passions" (1990) and "A Killer Among Friends" (1992).

Aside from acting, Stewart is also an accomplished singer and dancer. She has performed in numerous stage productions, including a touring production of the musical "Grease" in the 1990s.

Overall, Catherine Mary Stewart is a talented and versatile actress who has made a significant contribution to the entertainment industry through her work in film, television, and stage productions. She continues to act and perform to this day, and remains a beloved figure among fans of 80s cinema.