Carl Fredricksen and Russell Neutron: Boy Genius

Cast

 * Jimmy Neutron - Carl Fredricksen (w/ Russell as an extra) (Up)
 * Carl Wheezer - Lord Shen (Kung Fu Panda 2)
 * Sheen Estevez - Junior (Storks), Oh (Home), WALL-E, Mumble (Happy Feet) and Soren (Legend of the Guardians: The Owls of Ga'Hoole)
 * Cindy Vortex - Rainbow Dash (w/ Twilight Sparkle as an extra) (My Little Pony: Friendship is Magic)
 * Libby Folfax - Moana, Starlight Glimmer (My Little Pony: Friendship is Magic), EVE (WALL-E), Gloria (Happy Feet) and Otulissa (Legend of the Guardians: The Owls of Ga'Hoole)
 * Nick Dean - Tai Lung (Kung Fu Panda) and Kai (Kung Fu Panda 3)
 * Judy Neutron - Colette Tatou (Ratatouille)
 * Hugh Neutron - Linguini (Ratatouille)
 * Goddard - Dug (Up)
 * King Gobot - Charles Muntz (Up)
 * Ooblar - Nigel (Rio)