Tadeo Jones (voice) (as Oscar Barberán)
Sara Lavrof (voice)
Freddy (voice)
Max Mordon (voice)
Momia (voice) (as Lluís Posada)
Tadeo niño (voice)
Kopponen (voice)
Profesor Miguel Humbert (voice)
Profesor Lavrof (voice)
Voces adicionales (voice)
Voces adicionales (voice) (as José Antonio Jimenez)
Abuela Tadeo (voice)
Capataz (voice)
Voces adicionales (voice) (as Carles Vicente)
Tad Stones / Kopponen (voice)
Professor Lavrof / Humbert (voice) (as Mac Macdonald)
The Mummy (voice)
Grandma (voice)
Tad (Child) (voice)
Tadeo (voice)
Melinda (voice) (uncredited)