64

Dan Castellaneta

as Arnold's Grandpa

71

Tress MacNeille

as Arnold's Grandma

55

Kath Soucie

as Miriam Pataki

39

Olivia Hack

as Rhonda Wellington Lloyd

39

Jamil Walker Smith

as Gerald Johanssen

42

Anndi McAfee

as Phoebe Heyerdahl

37

Francesca Marie Smith

as Helga Pataki

65

Craig Bartlett

as Brainy

39

Lane Toran

as Arnold

About Hey Arnold!

About

A young football-headed boy lives in a boarding house with his grandparents in Brooklyn, New York. The show ran for five seasons and aired a total of 100 episodes. 

Trivia

The character of Arnold is based on a character created by Craig Bartlett while he was working on Pee-wee's Playhouse. The show launched a feature film in 2002 called Hey Arnold!: The Movie.