Nil the Sun's Might: A shardmind invoker|wizard played by Sir Patrick Stewart. I think he could perfectly play the tone Nil's knowing innocence. Nil likes to absorb the actions taken by others and see if he can apply them to himself.
Urak Bloodbrow: A half-orc brawler fight would best be played by Sean William Scott. Urak has the same nasty nature as Sean does in most of his films, and Sean is built.
Scalple: A human monk, best played by Tony Jaa (from Ong-Bak and The Protector). Yeah, they both punch stuff and are nearly impossible to hit.
Volkith: Dragonborn beastmaster ranger played by John Malkovich. They both treat other people like crap and hate almost everything. Also they are both always angry.
For my Dwarven Paladin: Sam Elliot
For my Tiefling Assassin: Kristen Stewart
For my Dragonborn Wizard: Jason Bateman
For my Dragonborn Barbarian|Sorcerer: The teenage boy on the new 'V' series
My SWSE Noble / Scoundrel Force-user would be played by the gay bearded dude on "Modern Family." Appearance-wise, anyway. The PC is significantly less gay.