Ashlie Brillault was born in San Francisco on May 21, 1987, the first of four children, and raised in Long Beach. Her debut into public life began at the age of three, while modeling in a bridal fashion show. After quitting modeling for several years, Ashlie went back to the profession in 1998. For the next few years, she did print ads for companies like K-Mart. She has two sisters Jennie and Alisa and a brother named Tucker who was arrested back in 2002.
In 2000, she landed the part as pretty yet ruthless Kate Sanders/Saunders on Disney Channel's show Lizzie McGuire. Although she was only supposed to be a guest star, but the producers repeatedly brought her back to appear on many episodes. After debuting in 2001, the show became a success. However, in 2002 (after two seasons), Lizzie McGuire stopped filming. Disney channel sets a 65-episode limit on most of its shows, and Lizzie McGuire had reached this limit. Although the channel was considering breaking this rule and filming a third season, disputes about Hilary Duff's salary prevented this from occurring.
Nonetheless, it was decided that a movie version of the show was to be filmed. In the Fall of 2002, the cast (without Lalaine, the actress who played Lizzie's best friend Miranda) headed to Vancouver and Rome to begin filming "The Lizzie McGuire Movie". The film hit theatres in May 2003 to mixed reviews.
Ashlie was in a few projects after The Lizzie McGuire Movie, such as a guest starring role on the UPN television series One On One, playing herself in the ABC Family series Switched!, and playing herself in a Hawaiian sketch comedy show called Tabby Tales TV. However, she then decided that she wanted to be a regular teenager for a while instead of an actress. Ashlie graduated from high school in 2005 and is currently enrolled at a local college. At the moment, she is holding off on acting and is focusing on school instead. In Febraury 2009, Ashlie's brother was rearrested for parole violations. Her brother is currently at a California jail.
