Several actors, including Chris Rock and Steve Buscemi, were considered for George Costanza before Jason Alexander got the role.

Jason Alexander revealed in a 2023 interview that several actors, including Chris Rock, Danny DeVito, Rosie O'Donnell, and Steve Buscemi, were considered for the role of George Costanza on "Seinfeld" before he was cast. He also shared that co-creator Larry David had initially wanted to play the character himself, even portraying him briefly on "Curb Your Enthusiasm." The show, which aired from 1989 to 1998, won 10 Emmy Awards and remains a cultural touchstone.