Oh man, I can't believe I registered just to post on this message board
But I've just been re-reading the Belgariad (for the 100th time) and I've spent a while thinking about this so i couldn't help myself haha.
I think the actors should at least resemble the physical description of the characters, and they should have suitable personalities (or be sufficiently skilled at acting so they can fake it). But everybody knows that certain actors play certain roles better than others. So my decisions have been well thought out to include the physical appearance and my interpretation of the characters. (please don't rub it in my face that these actors would blow the budget of any film, this is just speculation anyway)
Polgara: Angelina Jolie or Lucy Lawless. Pol has long dark hair, blue eyes, is tall, and has a "don't mess with me" personality but also a softer side. It's pretty hard to match.
Durnik: Brad Pitt - because I'm sentimental haha! Have to admit, I don't really connect with the character well so I'm not sure who could play Durnik
Garion: Hayden Christensen (almost purely based on his looks.. i can't think of anyone else young enough + who could be the innocent farmboy as well as the Rivan King with the blazing sword)
Ce'Nedra: Lindsay Lohan. before you bite my head off, she's got the auburn hair, the green eyes, and i think she would do the spoiled princess thing quite well.
Belgarath: Ah... so many choices. I must admit I lean towards Sean Connery.
Silk: I think a few people have already mentioned Johnny Depp. Brilliant!!! Would love to see him play this role. I think he's a versatile actor and sometimes he's not given enough credit for being able to play different and complex roles.
Zubrette: i know she's only a minor character but don't you think Scarlett Johansson would play a busty blonde Alorn (who happens to have a brain) really well?
That's all i got for now folks!
