Well, I gotta jump in with my team. I believe these are all unique (in that no one else has chosen them).
Robot: Robby the Robot - He’s strong, is a walking computer, and has a built in danger sensor. What more could you want from a robot?
Scientist: John Crichton - he developed a way to slingshot not only a small module, but a large leviathan space ship around a planet to fling it at near light speeds. Plus, he doubles as a warrior.
Warrior: Space Marine - genetically engineered to be a warrior. Near-indestructible armor, highly trained in combat. Carries a bolter. Pure bad-assery. Plus, chainsword.
Alien: Yoda - Jedi master, Telekinesis, minor mind reading and minipulation and light saber skilz. Plus, he was already declared to not fall under the “No God” rule.
-Chris