Star Wars:
Mark hamill - Luke skywalker
Carrie fisher - Princess Leia
Anthony Daniels - c3-po
Kenny baker - r2-d2
Jeremy bulloch - boba fett
Peter mayhew - chewbacca
Paul Blake - greedo
Ian mcdiarmid - the emperor
Other:
Ken Anderson - wrestler
Rey mysterio - wrestler
Seems impossible but JACKIE CHAN would be an awesome guest I would pay big money for autographs and photoshoots