Mason Cotton
Arnold (voice)
Picking up where Hey Arnold! (1996) left off, this tells the story of what happened to Arnold's parents.
Arnold (voice)
Gerald (voice)
Helga (voice)
Phoebe (voice)
Eduardo (voice)
La Sombra (voice)
Harold (voice)
Stella (voice)
Nadine (voice)
Paulo (voice)
Olga (voice)
Rhonda (voice)
Che (voice)
Mr. Simmons (voice)
Grandpa (voice)
Grandma (voice)
Bob Pataki (voice)
Ernie (voice)
Miriam (voice)
Big Patty (voice)
Director
