Suggestions by @jacobbrown

Jim Lang

as Composer in Hey Arnold! Animals

Phil Collins

as Animal Kingdom God in Hey Arnold! Animals

Clarence Nash

as Additional Animals in Hey Arnold! Animals

Clarence Nash

as Bear in Hey Arnold! Animals

Clarence Nash

as Tiger in Hey Arnold! Animals

Clarence Nash

as Lion in Hey Arnold! Animals

Clarence Nash

as Duck in Hey Arnold! Animals

Elizabeth Daily

as Principal Wartz / Girl #2 in Hey Arnold! Animals

Cathy Cavadini

as Mr. Simmons / Girl #1 in Hey Arnold! Animals

Tara Strong

as Club Children (Arnold's Classmates) in Hey Arnold! Animals

Jason Marsden

as Arnold Shortman in Hey Arnold! Animals

Pinto Colvig

as Monkeyman / Brainey (flamingo) in Hey Arnold! Animals

Krystal Meadows

as Miles Shortman / Olga (weasel) in Hey Arnold! Animals

Holly Gauthier-Frankel

as Willie the Jolly Olly Man / Curly (toucan) in Hey Arnold! Animals

Holly Gauthier-Frankel

as Oskar Kokoshka / Sid (warthog) in Hey Arnold! Animals

Holly Gauthier-Frankel

as Ernie Potts / Eugene (warthog) in Hey Arnold! Animals

Melissa Altro

as Suzie Kokoshka / Nadine (aardvark) in Hey Arnold! Animals

Jodie Resther

as Stella Shortman / Rhonda (elephant) in Hey Arnold! Animals

Krystal Meadows

as Mr. Hyunh / Stinky in Hey Arnold! Animals

Bruce Dinsmore

as Robert 'Big Bob' Pataki / Harold (kangaroo) in Hey Arnold! Animals