Arnold

J.D. Daniels

Arnold (voice)

Francesca Marie Smith

Helga (voice)

Джастин Шенкароу

Harold (voice)

Jamil Walker Smith

Gerald (voice)

Craig Bartlett

Brainy (voice)

Дэн Кастелланета

Grandpa (voice)

Тресс Макнилл

Grandma (voice)