Enrique Gato Director Kerry Shale Tad Stones , Kopponen Voice Cheech Marin Freddy Voice Ariel Winter Sara Lavrof Voice Adam James Max Mordon Voice Mac McDonald Professor Lavrof, Professor Humbert Voice Bruce Mackinnon The Mummy Voice Liza Ross Grandma Voice Maria Darling Tad (Child) Voice Javier López Barreira Screenwriter Jordi Gasull Producer Neil Landau Screenwriter Gorka Magallón Screenwriter Ignacio del Moral Screenwriter Edmon Roch Producer Álvaro Augustin Producer Nicolas Matji Producer Zacarías M. de la Riva Original Music Alexander Adams Film Editing Karen Lindsay-Stewart Casting