I'm going to be terrible at this...

Hair (most of these are guesses):
1. Joe Flanigan (from my favourite SGA publicity shoot)
2. Jensen Ackles
3. Zachary Quinto
4
5.
6.
7.
8. Ben Browder
9. David Tennant
10. Johnny Depp

I could make guesses at the others but I'm not sure.

Eyes:
1. John Barrowman
2.
3.
4
5. David Hewlett
6.
7.
8.
9. Michael Shanks
10. Joe Flanigan

Hmmm... I'm finding the eyes harder than anything else. *cry* I wish I could do better. I hope the ones I've guessed are right though!