Roachie is a character in the CatDog episode The Pet. He is a cockroach who lives at the Nearburg dump.
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Roachy is kept as a pet by Dog when he has a broken leg and Dog nurses him to health. Cat despises Roachie until he saved Cat from being stuck on the washing machine and from an evil robotic exterminator. Later, Roachie returns back home to the dump.