Robertson made her first television appearances in a Scottish-Canadian television drama series The Campbells. Subsequently, she appeared in a Canadian TV series My Secret Identity, which was aired on CTV, an English-language broadcast television network.
In 1997, Robertson featured in American black comedy-drama film by director Gregg Araki, Nowhere.The stars of this movie are James Duval, Rachel True, Jordan Ladd, and Christina Applegate. The movie collected $194,201 at the box office.
In 2001, Robertson featured in American horror comedy movie Scary Movie 2, which was directed by Keenen Ivory Wayans. The stars of this movie are Anna Faris, Regina Hall, Chris Masterson, and Chris Elliott. The movie became a huge hit and made a collection of $141.2 million at the box office against the budget of $45 million.
Some of her popular movies are I Woke Up Early The Day I Died, Dog Park, Splendor, Beautiful, Torso: The Evelyn Dick Story, Until the Night, Control, Last Exit, Player 5150, Down the Road Again, Seal Team Six: The Raid on Osama Bin Laden, and The Vatican Tapes.
Similarly, Robertson has appeared in numerous television series like C.B.C.'s Magic Hou, Maniac Mansion, Beverly Hills, 90210, Girls Club, Medium, The Business, CSI: Miami, Boss, Cracked, Bates Motel, Murder in the First, and The Fixer.
Regarding her ethnicity and nationality, Robertson is a white Canadian actress. She has dated her boyfriend Gregg Araki, a director and independent filmmaker from 1997 to 1999. In 2004, she married her husband Chris Cowles. On July 9, 2008, she gave birth to her son William Robert Cowles at Cedars-Sinai Medical Center in Los Angeles. She lives a happily married life with her spouse Chris Cowles and has no any rumor of divorce.
The Hollywood celebrity Robertson has successfully earned a big chunk of money from her professional acting career. She has given numerous hit movies and television shows from which she must have grabbed a decent amount of salary. As of 2018, the beautiful and glamorous actress has banked $3 Million net worth.