Her career was launched in 2003, when she was cast in the leading role of Hanna Thompson in the low budget award-winning film The Other Side. According to the movie's commentary, she was originally at the audition to help out by reading against the male actors, but the director Gregg Bishop decided to cast her in the leading role after hearing her perform the lines. Alexander’s first role was in the movie Squirrel Trap where she played 'Sara', the love interest of the main character, David, who is a socially introverted genius portrayed by Keith Staley. From there she proceeded to more significant roles. She appeared in the movie The Other Side as 'Hanna Thompson', the girlfriend of the main character; and in the series Watch Over Me where she portrayed the controversial character of 'Caitlin Porter'.
In 2006, she had her first feature film lead role in the horror film Rest Stop where she portrayed 'Nicole Carrow', a girl who escapes from home and goes on a trip with her boyfriend, which is unexpectedly interrupted at a rest stop by a deranged serial killer. In 2007, she had her second lead role, also in a horror film. In Hallowed Ground she played 'Elizabeth Chambers', a girl stranded in a small town inhabited by a sect that plans to use her as a vessel for the rebirth of their founder. In both movies, her character is a strong character who fights back against her aggressors.
Her most famous part so far was that of 'Jessi' on the ABC Family television show Kyle XY. She portrays a girl with superhuman powers who is trying to find her way in the world, with increasing cooperation and eventual romance with her male counterpart Kyle.
- Beautiful raven dark hair
- Dark beauty
- Strong female character portrayals