Steven Universe/Back to the Future

Cast

 * Steven Universe as Marty McFly
 * Greg Universe as Dr. Emmet Brown
 * Vannesa (from Phineas and Ferb) as Lorraines Baines McFly
 * Luke Skywalker (from Star Wars) as George McFly
 * The Joker (from Batman: The Animated Series) as Biff Tannen