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Who is your favourite actor/ actress in a video game?

Actor In Video Games:
Billy Dee Williams - Lando goes bad and sleazy in Tiberium Wars.
Casper Van Dien - a small role as your wingman in Wing Commander IV.
Dennis Hopper - in Black Dahlia.
Joe Kucan - the infamous Kane in the C&C series.
James Earl Jones - Darth Vader with bad acting in Tiberian Sun.
John Rhys Davies - Gimli also stars in the Wing Commander series and a Dune game.
Mark Hamill - Christopher Blair in Wing Commander III, IV, Prophecy.
Malcolm Mcdowell - Wing Commander III and IV. (who says you can't have quality acting in a video game)
Mark Dacascos - dumby pilot Catscratch in Wing Commander IV.
Michael Biehn - teh hero of Tiberian Sun.
Michael Ironside - set a new standard for over-acting in Tiberium Wars.
Michael York - he's pretty average in Tex Murphy: Overseer just like most of his movies. =\
Tahmoh Penikett - BSG's Helo playing a villian in Need For Speed: Carbon?!
Tom Wilson - Wing Comander's Maniac!

Actresses In Video Games:
Grace Park - Asian Cylon playing GDI personnel.
Kari Wuhrer - How can anyone forget Agent Tanya in Red Alert 2.
Margot Kidder - 'Aunt' Lois Lane in Under a Killing Moon.
Suzanne Barnes - as Chelsee Bando in the Tex Murphy adventures.
Tanya Roberts - Ex-Angel in FMV driven Pandora's Directive.
Teri Garr - in Black Dahlia.
Tia Carrere - as Ari in The Daedalus Encounter.
Tricia Helfer - Number Six can be a sexy NOD too.

My Pick:
Favourite Actor: Mark Hamill simply because he's Mark Hamill?
Favourite Actress: Grace Park (her omg naturalistic acting outperforms Tricia Helfer, Billy Dee Williams and overacting Michael Ironside in Tiberium Wars!)

(I may have miss out on quite a few so feel free to point them out:))

*edit: added a few more names...

Mark Hamill.

Gotsta be Hamill from Wing Commander

I want to say Rachael Leigh Cook, but that would mean I'm actually considering Dirge of Cerberus worth playing. :x

Of the ones you found:

Malcolm MacDowell, very easily.

Mark Hamill.