•
Richard Bell - Walter Melon, Explorer #1 (in "Marzipan the Ape Man"), Explorer #2 (in "Marzipan the Ape Man"),
Chaise Pond (in "Goldenrod"),
Pew (in "Goldenrod"), Soldier (in "The Mark of Zero"),
Pita Pocket's Sidekick (in "The Far Out Flower Rangers"),
Gordo (in "Groggy XII"),
Jim Yelps (in "Melon Impossible"), Cousteau (in "Gums"), Villagers (in "Frank & Stein"), Artist (in "The Derisible Man"), Teapot Genie (in "Palladin & The Capricious Lamp") • Jeremiah Nagle - Bitterbug (season 1), Nerd (in "The Glob") •
Samuel Vincent - Bitterbug (season 2) •
Michael McConnohie - Sneero (season 1), Professor, Announcer (in "Windiana Bones and the Temp of Doom"),
Mason (in "The Far Out Flower Rangers"), Brother (in "A Fistful of Melon"),
Van Gough (in "New Age Pizza Lovin' Tae Kwon Do Tortoises"), Reporter (in "Incompetence Day"),
Steve (in "King Gong"), Centurion (in "Ben Hurdy-Gurdy"),
Julius Iglesias (in "Ben Hurdy-Gurdy"), Parrot (in "The Jungle Schnook"),
John Smith (in "Christopher Columsy"),
Assistant Director Skintrop (in "Hex Files"), Eddie the Yeti (in "Dr. Jiggle and Mr. Snide") •
Lee Tockar - Sneero (season 2) •
Francine Elcar - Amelia
Additional voices •
Robert Axelrod -
Laughing Lads (in "Dobin Wood") •
Steve Blum -
Franz Polo (in "Melon Strikes Back"),
Steve McKing (in "The Glob"), General #1 (in "Whambo"), Rebel #1 (in "Whambo"), Rebel #2 (in "Whambo"),
Hercules (in "The Hard Labours of Hercules"),
Minotaur (in "The Hard Labours of Hercules"),
Blabbela (in "The Jungle Schnook"), Pet Shop Owner (in "The Jungle Schnook"),
Dr. Stein (in "Frank & Stein") •
Steve Bulen -
Oleo Cannoli (in "Melon Strikes Back"),
Droid (in "Melon Strikes Back"), French Teacher (in "The Glob") •
Cam Clarke as Mayor (in "Gums"),
Picasso (in "New Age Pizza Lovin' Tae Kwon Do Tortoises"),
Stonecold (in "New Age Pizza Lovin' Tae Kwon Do Tortoises"), Sewer Worker (in "New Age Pizza Lovin' Tae Kwon Do Tortoises") •
Richard Epcar -
Robotroll (in "Robomelon"), Police Officer (in "Robomelon") •
Barbara Goodson - Commercial Announcer (in "Shalien"), Daycare Announcer (in "Shalien"),
Glenda (in "Melon of Snoz") •
Peter Greenwood -
Fat Max (in "Fat Max - The Roo's Revenge") •
R. Martin Klein -
Jack (in "King Gong"), Resort Manager (in "King Gong") •
Lex Lang -
Grogy Barbacoa (in "Groggy XII"),
Agent Muldy (in "Hex Files"), • Douglas Lee - Chief Broody (in "Gums"),
Squinter (in "New Age Pizza Lovin' Tae Kwon Do Tortoises"),
Doo Wop (in "New Age Pizza Lovin' Tie Kwon Do Tortoises"),
Lieutenant Bebop (in "Shalien"), Park Ranger Snozzie (in "Melon of Oz") •
Wendee Lee -
Peter Pun (in "Peter Pun") •
Daran Norris - Tape Voice (in "Melon Impossible"), Flash (in "Robomelon"), Protocop (in "Robomelon"),
Corporal Fixey (in "Shalien"),
Dance A Lot (in "Dance A Lot"),
Irving (in "Dance A Lot"),
Henry Jiggle (in "Dr. Jiggle and Mr. Snide") •
Tony Pope - Sergeant Gordito (in "The Mark of Zero"), Soldier (in "The Mark of Zero"),
Mad Hatter (in "Melon in Blunderland"),
Baloney (in "The Jungle Schnook"),
Igorbeaver (in "Frank & Stein"), Villagers (in "Frank & Stein") •
Jan Rabson -
Scarecrow (in "Melon of Snoz") •
Michael Sorich -
King Richard the Artichoke (in "Dobin Wood"),
Laughing Lads (in "Dobin Wood"),
White Rabbit (in "Melon of Blunderland"),
Christopher Columsy (in "Christopher Columsy"), Genie (in "Palladin & The Capricious Lamp") •
Doug Stone -
Zero (in "The Mark of Zero"), Bird (in "The Mark of Zero") • Tom Wyner -
Sordon (in "The Far Out Flower Rangers"), Announcer (in "Groffy XII") ==Crew==