Seth Rogen (born April 15, 1982) is a Canadian actor, comedian, writer and film producer. He began his career doing stand-up comedy for four years during his teens, coming in second place in the Vancouver Amateur Comedy Contest when he was 16. While still living in Canada, he auditioned for (and ultimately landed) a supporting role in Freaks and Geeks. After moving to Los Angeles for the role, Freaks and Geeks was canceled after one season. He then got a part on the equally short-lived Undeclared, which also hired him as a staff writer.

After landing a job as a staff writer on the final season of Da Ali G Show, for which he and the other writers received an Emmy nomination, he was guided by director Judd Apatow toward a film career. He was cast in a major supporting role and credited as a co-producer in Apatow’s directorial debut, The 40-Year-Old Virgin. After receiving critical praise for that performance, Universal Pictures agreed to cast him as the lead in Apatow’s next directorial feature, Knocked Up.

Throughout his career, he has appeared in the films Donnie Darko, You, Me and Dupree, Zack and Miri Make a Porno and Fanboys, in addition to the Apatow-produced comedies, Superbad (a semi-autobiographical comedy he originally intended to headline years ago, co-written by Rogen and Evan Goldberg), Step Brothers, and Pineapple Express. He also co-wrote the screenplay for another comedy that Apatow helped co-produce, Owen Wilson\'s Drillbit Taylor. He has also provided voiceovers in Shrek The Third, The Spiderwick Chronicles, Horton Hears a Who!, Kung Fu Panda, and Monsters vs. Aliens. (via Wikipedia)