Judd Apatow's college comedy, Undeclared, features a star-studded cast including Seth Rogen, Charlie Hunnam, and Jason Segel.

In an upcoming project, the “Knocked Up” star is playing a character drastically different from his “Freaks and Geeks” character Ken Miller, who Rogen believes that 25 years later is ...

He played a camp counselor in the 1995 comedy movie Heavyweights and even had a recurring role on Sabrina, the Teenage Witch. Freaks and Geeks first premiered on NBC in the fall of 1999.

But those movies—like The 40-Year-Old Virgin, Knocked Up and Funny People—owed a lot to the loose, blemish-heavy, quasi-improv sensibility of his TV shows.

1. Creator Paul Feig noted that Freaks and Geeks, which featured a young cast — some of whom hadn’t gone through puberty yet — was NBC’s lowest-rated show when it aired from 1999 to 2000.

Well-known roles he had involved television shows like Freaks and Geeks, How I Met Your Mother as well as films like Forgetting Sarah Marshall, The Muppets, Our Friend and more.