Bob Rainicorn is Lady Rainicorn's father. He appears in the episode "Her Parents," when Jake meets Bob and Ethel Rainicorn for the first time. To make a good first imppresion, Jake pretends to be a rainicorn to earn their acceptance. Ethel and Bob reveal that Rainicorns love to eat human flesh. Bob, and his wife Ethel, like to play Cameladapuamawamapp.
He's a lot smaller then his wife or daughter. He has a blue body with rainbow stripes. He and his wife also wear glasses.