Guest Star Watch: Penn Badgley and Jenna Fischer
Way back before he starred in Gossip Girl and John Tucker Must Die, Penn Badgley guest-starred in an episode of What I Like About You. He played Holly's coworker at Copy That.
And way back before she played Pam on The Office, Jenna Fischer guest-starred in the very same episode. She played Val's coworker at the public relations firm.
Wanna see Penn and Jenna (If they dated, they'd be Penna!) before they were household names? Watch the episode called "Copy That."