Runaway Brain (film) Mickey Mouse cartoon. Dr. Frankenollie, a mad scientist, transplants Mickey’s brain into a monster’s body and vice versa. The monsterized Mickey, known as Julius, becomes obsessed with pursuing Minnie, and Mickey, whose intentions are misunderstood because he is in the monster’s body, tries to save her. Released on August 11, 1995, with A Kid in King Arthur’s Court. Directed by Chris Bailey. Voices are Wayne Allwine, Russi Taylor, Kelsey Grammer, Jim Cummings, Bill Farmer. The name of Dr. Frankenollie was inspired by the famed animators Frank Thomas and Ollie Johnston. The cartoon was nominated for an Academy Award.