Kathleen Robertson was born 8 june 1973 in Hamilton, Ontario and attended Sherwood Secondary School and Hillfield Strathallan College, a local private school. She started taking acting classes when she was ten and had roles in local theater productions. Her first television appearances were in The Campbells, My Secret Identity and E.N.G. From 1990 to 1993, Robertson starred as Tina Edison, the eldest of three children of Dr. Fred Edison (Joe Flaherty), on the Canadian sitcom Maniac Mansion. This role earned her two nominations for Young Artist Awards. She appeared in several small films and television shows, and did not debut on the big screen until her small role in the 1992 thriller film Blown Away, opposite Corey Haim and Nicole Eggert. She also made her American debut in the 1992 made-for-television movie, Quiet Killer, co-starring Kate Jackson. Robertson dated director and independent filmmaker Gregg Araki from 1997 to 1999. Robertson has been married to Chris Cowles since 2004. She gave birth to her first child, a son named William Robert Cowles, on July 9, 2008 at Cedars-Sinai Medical Center in Los Angeles.

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