Darth Vader didn't really command anything though, and as said before, he's copyrighted. I think Rebel and Imp ground officers would be cool, maybe a Piett lookalike for space, along with a certain, Trap-weary Fish-man.
I think this is possible. But not to be a major character in Star Wars like Darth or Ackbar... It could be another Mon Cal though (dont call me racist but they all look the same!) <-- lol
"Munchkin: One who, on being told that this is a game about politics and intrigue in 17th century Italy, asks to play a ninja." — Andrew Rilstone