Version 1[]
- Steven Universe as Alex
- Amethyst as Gloria
- Pearl as Melman
- Uncle Grandpa as Marty
- Lapis as King Julien
- Blue Diamond as Maurice
- Pink Diamond as Mort
- Ronaldo Fryman as Skipper
- Peridot as Kowalski
- Ruby as Private
- Lion as Rico
Version 2[]
- Steven Universe as Alex
- Lapis Lazuli as Marty
- Star Butterfly as Melman
- Amethyst as Gloria
- Big Chris (from Roary the Racing Car) as King Julien
- Roary the Racing Car as Mort
- Mr Carburettor (from Roary the Racing Car) as Maurice
- Leo (from Little Einsteins) as Skipper
- June (from Little Einsteins) as Kowalski
- Quincy (from Little Einsteins) as Rico
- Annie (from Little Einsteins) as Private