My Idea for a REBOOT cast:
Goku: Chris Hemsworth, Channing Tatum
Vegeta: Jonathan Rhys Meyers,Alex Frost
Napa: Bill Goldberg, Vinnie Jones
Master Roshi: Ben Kingsley
Dr. Briefs: Gary Oldman
Piccolo: Chris Judge, Vin Diesel
Krillin: Ernie Reyes Jr.
Yajarobi: Jack Black
Bulma: Shannyn Sossamon
Yamcha: Takeshi Kaneshiro
Tien: Russell Wong
Chi Chi: Kristen Kreuk, Devon Aoki
King Vegeta: Kevin McKidd, John Glover
Channing Tatum - Has the physique and screen presence to pull off a Goku
Jonathan Reyes Meyers - anyone who can't see this guy as Vegeta was never a serious fan of the show IMHO. This guy has it all: arrogance, presence, raspy aristocratic voice, (most importantly) acting skill.
Bill Goldberg - He's a Nappa clone and since Nappa dies early on, he would have just enough lines in the movie to pull it off without ruining it.
Ben Kingsley - I've seen him do it all.... from drama, to comedy, to gangster mentality. I think he could really pull off the old skirt chasing Master Roshi (who is also in retirement btw) while showing the depth and sentimentalism that Roshi does when reminiscing about Goku.
Gary Oldman - Commissioner Gordan meet Dr. Briefs.
Chris Judge - Piccolo calls for an actor who can say volumes with a look or demeanor, and no one does it better than Stargate's Te' alc.
Kevin McKidd- Since King Vegeta would only be shown either at the beginning to set up the story or via flashback to set up the story, McKidd would be the choice.
Kristin Kreuk - When I think of Chi Chi, I think of a country backwoods girl full of innocence with that girl-next-door look. Kristin has that down to a science from her days as Lana Lang. Plus she can kick serious butt when she has to.
Ernie Reyes Jr. - Initially I didn't see it. Then I saw him in Red Canvas. Krillin, welcome home.
Jack Black - Perfect Yajarobi
Shannyn Sossamon - Still up in the air on this one.