Jack O'Halloran aka Non, from Superman 2, boxing George foreman

[Hector]

I don’t know if some of you knew he was a professional heavyweight boxer.

Here he is trading punches with legendary George Foreman…

Yeah, he was knocked out. But that was still a tough hombre. I wouldn’t want to mess him him even at his age of 78.

[Brown Bear]

Yup, I watched him box as a kid on tv and always knew it was Non. He was not a fan of Christopher Reeve either.
Loved him in Hero and the Terror with Chuck Norris too