These surprised me:
1. David Oyelowo (Agent Kallus) played Martin Luther King in the movie Selma.

2. Vanessa Marshall (Hera Syndulla) played Vetvix in the movie Garfield's Pet Force.

3. Tiya Sircar (Sabine Wren) played Juniper in the movie Walking With Dinosaurs.

4. Steven Blum (Zeb Orrelios) plays in so many movies and shows that you should just go see it for yourself.

5. Taylor Gray (Ezra Bridger) played Friz Freleng in the movie Walt Before Mickey.

6. Freddie Prince Jr. (Kanan Jarrus) played in so many movies that I'm only listing the one that I've seen the most. He played Fred from Scooby-Doo the movie.

And finally the one we've been waiting for...
Chopper.
All he's played is Chopper.
'Cause he's a droid.

Alright cya later meh flying kitties!