Jon Hamm
Jon Hamm is one of those actors who just doesn't seem like he'd be in nude roles. He's never been fully nude on set! The closest he's been to nude on set is in Bridesmaids, but even that wasn't too bad.
Joan Collins
John Collins was a popular name in film and on stage. She was a legendary actress who eventually built herself up to be able to turn down roles. She ended up rejecting a role on the West End play circuit because the playwright asked her to be completely nude on stage. “It is unseemly to undress on stage,” Collins said.