Almost the Tin Man
Jed Clampett, played by Buddy Ebsen, was a successful actor and dancer who featured on Broadway and in films with Shirley Temple and Judy Garland. He was cast as the Scarecrow in “The Wizard of Oz”, but later switched to act as the Tin Man after Ray Bolger signed on.
He ended up having a serious reaction to the aluminum metallic makeup and had to drop out due to illness. Although he blamed the movie for his health and kung problems, he ended up living longer than all other major cast members.