Francesca Marie Smith

Helga Pataki (voice)

186 Episodes

Jamil Walker Smith

Gerald Johanssen (voice)

186 Episodes

Dan Castellaneta

Grandpa Phil (voice), Grandpa Phil / Reporter (voice), Grandpa Phil / Chicken Man (voice), Big Arnold (voice) and 8 more...

163 Episodes

Justin Shenkarow

Harold Berman (voice), Harold Berman(voice), Harold Berman / Robert (voice), Joey (voice) and 3 more...

149 Episodes

Anndi McAfee

Phoebe Heyerdahl (voice), Phoebe Heyerdahl / Ruth P. McDougal (voice), Phoebe Heyerdahl / Girl (voice), Phoebe Heyerdahl / Clerk (voice) and 6 more...

111 Episodes

Christopher Walberg

Stinky Peterson (voice), Stinky Peterson / Kyle (voice), Stinky Peterson (voice; uncredited), Stinky Peterson / Bratty Kid #1 (voice)

88 Episodes

Phillip Van Dyke

Arnold (voice), Ludwig (voice)

76 Episodes

Spencer Klein

Arnold (voice)

73 Episodes

Olivia Hack

Rhonda Wellington Lloyd (voice), Rhonda Wellington Lloyd / Mary (voice)

66 Episodes