Guess Who's Guest Starring on 'Chuck' this Fall!

Following in the footsteps of such guest stars as Bruce Boxleitner, Morgan Fairchild, Scott Bakula and Christopher Lloyd - just to name a few - two new guest stars have been confirmed for the returning season 4 of Chuck this fall.

The first one is actor Dolph Lundgren, of Rocky IV fame and the upcoming Sylvester Stallone extravaganza The Expendables.