I Don't Talk to Separatists

Asajj Ventress: Take care of what's left of the clones! I'll go after Skywalker!
Battle Droid Commander: Roger! Roger!
Asajj Ventress: Seal the main gate on all portals! Let no one escape this castle!
Battle Droid Commander: Yes, Mistress!
Asajj Ventress: Where is Skywalker?
Captain Rex: I don't talk to Separatist scum!