Mystery actor

[Click for a much larger view.]

His name was in the credits. But I still didn’t recognize him. Do you?

Please, guess and guess again. I’m going to be away from screens for a bit; I’ll drop a hint in the not too distant future if necessary.

Someone guessed Mark Hamill, and there is a strong resemblance. But this actor was born much earlier.

*

Here’s a hint: here the actor is playing a bad guy. But he’s best known for a role on the right side of the law.

*

One more hint: That role was in something whose title gave rise to a memorable bit of slang.

*

I’ll leave the name in the comments. Anyone who still wants to guess is welcome to do so.

More mystery actors
? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ? : ?