Tad is a celebrity archaeologist and adventurer just like his hero Max Mordon... in his dreams! In reality, Tad is a Chicago construction worker. One day, however, he is mistaken for a real professor and takes his place on a flight to Peru in search of the lost city of Paititi.
| Actor | Role |
|---|---|
 Óscar BarberánTad Jones (voice) | Tad Jones (voice) |
 Michelle JennerSara Lavrof (voice) | Sara Lavrof (voice) |
 José MotaFreddy (voice) | Freddy (voice) |
 José CorbachoFreddy (catalan version) (voice) | Freddy (catalan version) (voice) |
 Pep Anton MuñozMax Mordon (voice) | Max Mordon (voice) |
 Miguel Ángel JennerKopponen (voice) | Kopponen (voice) |
 Luis PosadaMomia (voice) | Momia (voice) |
 Meritxell AnéYoung Tadeo (voice) | Young Tadeo (voice) |
 Carles CanutProfesor Miguel Humbert (voice) | Profesor Miguel Humbert (voice) |
| FFélix BenitoProfesor Lavrof (voice) | Profesor Lavrof (voice) |
 Aleix EstadellaVoces adicionales (voice) | Voces adicionales (voice) |
| RRafa ParraVoces adicionales (voice) | Voces adicionales (voice) |
| MMarta MartorellAbuela Tadeo (voice) | Abuela Tadeo (voice) |
| AAriadna GiménezVoces adicionales (voice) | Voces adicionales (voice) |