Canderous/Mandalore: Ron Perlman
Reven: Karl Urban/Grace Park
Malak: Jim Carey (just jokin, I really can't think of anyone who could play Malak)
HK-47: He should be the same guy who did the voice for him, and should be animated
Carth Onasi: Matt Damon
Bastila: Amanda Tapping
Jolee Bindo: Kieth David