Guess who is this?

I don't know what more hints to give, I'd be giving it away.

No, please, maybe somebody else will guess. They -like Oli- already know but want to give me chance getting credit too :D. I give up and have to go my lunch :truce: Brb in half an hour or so!
Terry O'Quinn.

I knew the guy's face (and my first thought was astronaut or test pilot!) so I had to do some digging.
(I've never seen Lost).
The dude in Star Wars:

You are kidding!
It was one of my first thoughts but the photo and his, erm, later appearance didn't jibe.

Naughty Enmos, using him as your avatar.
Wayne Pygram!!!!