updated 10/25/2010 AT 11:00 AM ET
•originally published 10/25/2010 AT 11:40 AM ET
The American Pie actor, 31, is currently on location shooting Fox’s The Good Guys, staring Colin Hanks and Bradley Whitford.
Klein is set to guest star on the police comedy’s season finale.
“He’s doing fantastic,” says a close friend. “He loves comedy and these guys are all fantastic.”