She later appeared in a number of independent films, and had guest-starring roles on Law & Order: Criminal Intent, Medium, CSI: Miami, and Rookie Blue.In 2006, she appeared in Hollywoodland opposite Adrien Brody.She is best known for her roles as Tina Edison, in the Canadian sitcom Maniac Mansion (1990–1993), and as Clare Arnold, in the Fox teen drama series Beverly Hills, 90210 (1994–1997).Robertson also starred in a number of films, and from 2011 to 2012 played the role of Kitty O'Neill in the Starz political drama series Boss.The biopic first aired in late April on CBC, and then made its US debut on the Hallmark Channel the first week in May.
In the same year, Robertson played the role of Evelyn Dick, a Canadian convicted murderer, whose trial remains the most sensationalized event in Canadian criminal history, in the made-for-television movie, Torso: The Evelyn Dick Story.
” There isn’t a day that goes by that someone doesn’t come up to me, and it’s not like it’s just an L. It’s so funny you say that because the guy who created that show, Phil Price, he always says to me, “Why are you doing drama? But I love doing comedy, so I’m putting it out there.
And I always say to my reps, “Comedy, comedy, comedy.” For some reason, I get a lot of dark stuff sent to me and a lot of really complicated, gritty, messed-up people -- which is also a lot of fun. Jason Priestley’s memoir recently put , I spoke to this woman, and she got emotional talking to me about certain episodes. And so it’s kind of amazing to be part of something that was so much a part of pop culture.
Robertson also has appeared in several films during her career.
She appeared opposite Luke Wilson in romantic comedy Dog Park (1998), in Sally Field's directed comedy-drama Beautiful (2000), and the parody movie Scary Movie 2 (2001).