Mort,Gort,and Wart

Mort, Gort, & Wart (voiced by Frank Welker, Thom Huge, and Howard Morris, respectively): Orson's three larger, meaner brothers who played a much bigger role in the cartoon than they ever did in the comic strip, where they were unnamed. They stopped appearing in the strip after Orson was taken away from his mother, but began appearing as tormentors to Orson in the cartoon.

Gort is the ringleader with yellow eyes, Mort is the shortest who grunts in his dialogue, and Wart is the tallest with buck teeth.