Fred Jones / Scooby-Doo (voice)
Shaggy Rogers (voice)
Daphne Blake (voice)
Velma Dinkley (voice)
Charlene Otero / Museum Guide / Old Woman #1 (voice)
Sofia Otero / Old Woman #2 (voice)
Luis Otero / Musician #2 / Suspicious Tourist (voice)
Jorge Otero (voice)
Señor Fuente / Man #1 (voice)
El Curandero / Man #2 (voice)
Natalia Otero / Little Girl (voice)
Doña Dolores / Woman #3 (voice)
Carolina Otero (voice)
Sebastian Otero / Little Boy (voice)
Alejo Otero / Musician #1 (voice)
Mr. Smiley / Ghost of Señor Otero (voice)
El Chuprecabra (voice)