C3PO and R2-D2
These two robots are part of the Alliance team. They are a duo and stick together most of the time. C3PO is a droid of high intelligence. He can speak tons of languages and compute many different kinds of machines. R2-D2, on the other hand, isn't as mobile as his fellow droid. He can also compute different kinds of machines and has attachments to fit into the computers that have to be worked on. Although R2-D2 talks in bleeps, he has a lot more courage and common sense then C3PO.