Flatworm Jim was the original pilot of the "Steel Duck." A six-foot-tall intelligent flatworm, Jim’s usefulness was cut short when he was injured, resulting in three versions -- good, bad and a two-headed neutral version. All three (or four) now live on Ralph’s asteroid tending to over 6 million hamsters.
Mayberry Melonpool is the television-addicted, somewhat clumsy, not-all-that-intelligent Captain of the "Steel Duck." Oh yeah, and he's obsessed with getting a date. In short, he doesn't have a lot going for him.
Aha! (Read yesterday’s comment)