Discover
Daws Butler
Loopy De Loop (voice)
Hal Smith
Elderly Woman / Mr. Hyde (voice)
Don Messick
Car Owner / Dr. Jekyll (voice)
Writing
Warren Foster
Story
Writing
Warren Foster
Story
Loopy unknowingly befriends a scientist who turns into a monster on and off without Loopy knowing that the monster is really him.
Loopy De Loop (voice)
Elderly Woman / Mr. Hyde (voice)
Car Owner / Dr. Jekyll (voice)
Story
Story