Most well known for her portrayal of Jane Siegel Sterling on the acclaimed AMC series Mad Men, she is also notable for her roles as Cara Coburn and Nicole Kirby on the respective television shows The Tomorrow People and FlashForward. She landed the lead role in The CW series Frequency.
She started modeling during her childhood years and also trained at New York City's School of American Ballet. At the start of her acting career, she had guest spots on both Sex and the City and Law & Order: Special Victims Unit.
She had starring roles in the short-lived NBC series Windfall and in the equally brief ABC drama Big Shots.
The child of Sherri Anderson and Douglas List and the sister of Brittany List, she spent her earliest days in Boston, Massachusetts, and the remainder of her childhood in Baltimore, Maryland.
During her four seasons of playing Lucy Montgomery on the soap opera As the World Turns, List shared a Soap Opera Digest Award nomination (in the "Favorite New Couple" category) with actor Grayson McCouch.