Rita Moreno
(Doña Dolores /
Woman #3
(voice)),
Jesse Borrego
(Luis Otero /
Musician #2 /
Suspicious Tourist
(voice)),
Maria Canals-Barrera
(Sofia Otero /
Old Woman #2
(voice) (as Maria Canals)),
Castulo Guerra
(Señor Fuente /
Man #1
(voice)),
Nicole Jaffe
(Velma
(voice)),
Casey Kasem
(Shaggy
(voice)),
Benito Martinez
(El Curandero /
Man #2
(voice)),
Candi Milo
(Charlene Otero /
Museum Guide /
Old Woman #1
(voice)),
Heather North
(Daphne
(voice) (as Heather North Kenny)),
Frank Welker
(Fred /
Scooby-Doo
(voice)),
Eddie Santiago
(Alejo Otero /
Musician #1
(voice)),
Brandon Gonzalez
(Jorge Otero
(voice)),
Casey Sandino
(Sebastian Otero /
Little Boy
(voice)),
Allyse Rivera
(Carolina Otero
(voice)),
Darlene Mendoza
(Natalia Otero /
Little Girl
(voice))