Figured it'd get more of a response here.

I'll start.

1. Agen Kolar

2. Ben Skywalker

3. Armored Darth Krayt

4. Darth Malgus (Post-Trailer)

5. Ven Zallow

6. Darth Vitiate

7. Vindican

8. Lord Scourge

9. Old Luke Skywalker

Etc.

Too many to name that you'll never be able to find.