Could've been worse. Remember, at one point they wanted to cast Batman (William Shatner) as the captain. Imagine that, a Canadian captain!
I'm having trouble envisioning Shatner's dramatically paused delivery for any character not wearing Bat-ears. "You'll never. Get away with this. Joker!" Can you see that working on a dramatic space show?
No wonder Shatner was typecast as Batman.