On the big screen, Helberg has appeared in the Academy Award-nominated films "A Serious Man" from the Coen Brothers, and "Good Night and Good Luck." His other feature film credits include "Old School," "For Your Consideration" and Judd Apatow's "Walk Hard: The Dewey Cox Story."
He also played the role of Moist in the Internet cult sensation, "Dr. Horrible's Sing-Along Blog."
Born and raised in Los Angeles, Helberg attended NYU's Tisch School of the Arts, where he trained at The Atlantic Theater Company. He is an accomplished pianist.
Currently, he lives in Los Angeles with his wife, Jocelyn. His birth date is Dec. 9. He can be followed on Twitter @simonhelberg.