It's definitely him in that movie called Downhill Racer. People are obviously looking into it too much that it cannot be him because of how he appears. Keep in mind, he was born in 1946 and this film was released in 1969. He didn't play Rocky Balboa and John Rambo for many years to come.

I mean, the reason he is not looking like a freak of nature in this screenshot I took is because he was just an ordinary guy back then, who was sent to Switzerland by his own mother, and got parts in stage shows and movies. Yeah, I read parts of an unofficial biography about his life (it never mentions this film). He didn't build all them muscles he is famous for until later on in his life, when his movie roles were more physical.

It's just silly to me how they added the credits before, but then some silly people came along, whined about whether it could be him like a bunch of fanboys, and got the credits removed. I'm not really bothered anyway. It's so sad and typical of fanboys, so I half expected this would happen. My sister thinks they're just jealous that I did that. This is why I tend not to want to help people online much now. Because when you do things for others, there's always one bad apple that messes things up for everyone.