According to Making Star Wars, voice actors Sam Witwer and Andrew Kishino will make the jump from The Clone Wars to Star Wars Rebels in as-yet-unidentified roles.
Witwer, best known as Starkiller from The Force Unleashed, voiced Maul in The Clone Wars. Kishino voiced Saw Gerrera, a rebel from the planet Onderon.
MSW is also hearing some Rebels rumors about a new character and a major new storyline that will appear later this season. Click here to read their report.
Star Wars Rebels: Spark Of Rebellion Darth Vader Scene Clip