Famous Actors You Forgot Guest Starred on Friends

10 seasons. 236 episodes. Lots of guest stars. There were famous people on Friends who didn’t even realize how famous they’d come to be, making cameos and guest appearances throughout the years. If you’re not catching reruns constantly and haven’t watched in years, you might not even remember these Friends guest stars. These are the famous actors you forgot guest starred on Friends - could they BE any more nostalgic?