Psy-Crow is an intergalactic bounty hunter and mercenary, most often employed by Queen Slug-For-A-Butt. In the first Earthworm Jim game, he engaged Jim in a space race between levels, and would fight him if he beat Jim in the race. In Earthworm Jim 2, he kidnaps Princess What's-Her-Name, with the game climaxing with a race through an obstacle course, one on one with Jim, to see who gets to marry her. He also showed up in Earthworm Jim 3D as the boss in the Memory area.
In the cartoon series, Psy-Crow's character (voiced by Jim Cummings) was fleshed out a bit more. He occasionally allies himself with Professor Monkey-For-A-Head, generally in service to the Queen. In the episode, Hyper-Psycrow, Psy-Crow claims to have been a veteran of the Vietnam War, and had been saved by a "Great Worm Spirit" during his time of service.
Psy-Crow was ranked #81 in IGN's top 100 video game villains list.
Read more about this topic: List Of Earthworm Jim Characters