Robbie the Assistant

[Simbax]

Nobody complains about GLaDOS observing nearly every move in Portal, but everyone loses their minds because of a friendly flying robot.

Any voice will make the game more attractive, especially in programming levels. I don't mean that she should be explaining everything and replace SatCom, but at least make funny comments or give hints. Also, she doesn't have to be always visible. It's a game for children after all, not IDE for serious work.