Langer was born in Columbus, Ohio, daughter of Deana, an audiologist who owned a hearing aid distribution company, and Gary Langer, who worked in sales for a wholesale fashion distributor.She moved to the San Fernando Valley with her family at age five, and began using her initials to join an all-boys baseball team three years later. She has one older brother, Kirk. Langer married attorney Charles Courtenay, styled the son of the Earl of Devon, in a civil ceremony in 2004. After recurring roles on several television shows, including The Wonder Years and Drexell's Class, Langer was cast as Rayanne Graff on My So-Called Life. She also appeared in the cast of the sitcoms It's Like, You Know... and Three Sisters as well as the drama series Eyes. Her film appearances include John Carpenter's Escape From L.A. and Wes Craven's horror film The People Under the Stairs. In 2011, after a six-year acting hiatus, Langer appeared in 14 episodes of Private Practice in the recurring role of Erica Warner. She left the show in 2012 following the death of her character.