A scene from “Unfinished Business”

Makiko Ohmoto (Japanese voice kept) – Kirby, and Kirbysaurus (Ep 76)

Kerry Williams – Tiff, and Tiffasaurus (Ep 76)

Kayzie Rogers – Tuff, Lady Like, Mayoress Hana Blustergas, Honey, and Tuffadactyl (Ep 76)

Ted Lewis – King Dedede, Escargoon, Escargoon Senior, Amon, Togeira (Ep 55), King D-Rex (Ep 75-76), Escarsaurus (Ep 76), Escar-Droid (Ep 78), Rekketsu (Ep 83), Crowmon (Ep 87), and Maimaigoon (Ep 88)

Eric Stuart – Lord Sir M. Meta Knight, Gus, Sir S. Sword Knight, Sir B. Blade Knight, Coo, Slice n' Splice, and Yamikage

Andrew Rannells – Chief Bookem (Eps. 75–100), Nightmare, Rick, Benikage, Max Flexer, and Chief Bookemsaurus (Ep 76)

Maddie Blaustein – Chef Kawasaki, Gengu, Tuggle, Biblio, Captain Waddle Doo, Professor Indiana Curio Jones, Melman, Hardy, Bonkers, Fang the Wheelie Bike, and Chef Kawasakisaurus (Ep 76)

Mike Pollock – Mayor Len Blustergas, Samo, Kit Cosmos, Chef Shittake, Mayor Lensaurus (Ep 76), and Samosaurus (Ep 76)

Amy Birnbaum – Kirby (speaking parts in early episodes), Spikehead, Professor Mabel, and Professor Mabelsaurus

David Lapkin – Sir Ebrum, Doctor Yabui, Mister Chip (Ep 83), and Dis Walney the Anige (Ep 89)

Veronica Taylor – Rowlin and Sirica

Darren Dunstan – Kine and Doctor Moro

Jerry Lobozzo – Chief Bookem (Eps. 1–75)

Tara Jayne – Fololo, Falala, Princess Rona and Commander Vee

Dan Green – N.M.E. Sales Guy, Whispy Woods

Kevin Kolack – Tokkori, Knuckle Joe

Jim Napolitano – Kabu, Iro

James Carter Cathcart – Sir Gallant

Lisa Ortiz – Buttercup Bookem, and Lovely