Quark's intended replacement for the Big Guy, a robot with real artificial intelligence and powered by nucleoprotons. However, Rusty is far too inexperienced to face the threats that the Big Guy normally handles, so he is relegated to being Big Guy's sidekick and trainee. He idolizes Big Guy but is unaware that his hero is actually a human inside a metal suit. Though immature and impetuous, Rusty does at times give his hero an emotional boost in morale. It's generally unwise to trifle with him; it may take a while, but the boy robot does make evildoers pay. He initially had a bit of a problem of handling the recoil of his nucleoproton blasts, and regularly got knocked down afterwards or shot the wrong target, but after some practice learned to compensate for the recoil. Rusty was Voiced by Pamela Adlon in the 1999 Animated TV Series.