Alyson Hannigan

Hannigan was born on March 24, 1974 in Washington, D.C., the only child of Emilie (Posner) Haas, a real-estate agent, and Alan Hannigan, a Teamsters trucker. Her father is of Irish ancestry and her mother is Jewish. At age four, Hannigan began appearing in commercials. After spending her childhood in her mother's hometown of Atlanta, Georgia, Hannigan moved to Hollywood at age 11 after securing an agent. As a teenager, Hannigan babysat for the children of her future How I Met Your Mother co-star, Bob Saget. Living with her mother and attending North Hollywood High School, she successfully auditioned for agents while visiting her father in Santa Barbara. After high school, she attended California State University, Northridge, where she was a member of the Alpha Chi Omega sorority and earned a degree in psychology.