Grape Ape is a 40-foot tall purple gorilla that always wore the same clothes: a cap, a green jacket and a bow tie. His catchphrase is repeating his name twice ("Grape Ape, Grape Ape") after anything anyone says, usually as a form of agreement or acknowledgment of what was said.
His best friend is Beegle Beagle, a normal-sized white dog. Along with his canine companion, Grape Ape travels around the world in a small yellow van driven by Beegle Beagle while Grape Ape sits on the roof. Always in search for adventure and usually finding themselves in all sorts of wacky situations, Grape Ape's immense size tends to initially shock and frighten those unfamiliar with him. His presence alone often terrifies people and animals, causing them to run off screaming invariably: "YEOW! It's a gorill-ill-ill-ill-la!". Given his size, his sneezes were equivalent to a hurricane; and when he cried, his tears could cause flooding in areas.