Tom Servo / Professor Bobo / Cambot / Callipygeas / Servo / Wade the Nanite / Kitten with a Whip / Santa Claus / William Conrad / Abe from Illinois / Digger Smolken / First Tech Support Voice / Fortinbras / Giant Leech / Hadrian / Harry Carey / Ilya Murametz / Ned the Nanite(voice) / Officer Kevin / Omnipotent Mom / Roadie / Robert Plant / Roger Whitaker / Ted
Mike Nelson / Observer / Torgo / Dr. Peanut / Hugh Beaumont / Buddy the Space Child / Glen Manning / Holo-clown / Jack Perkins / Michael Feinstein / Abe Vigoda / Aunt Catherine Wheel / Brad Roberts / Bruce / Custodian of the Seventh Galaxy from the Planet Ziffalodian / Deep 13 Computer / Eddie Nelson / Gamera / Goosio / Imperialistic Alien 1 / Isaac Asimov Literary Doomsday Device / J.C. / Jeff Smith / John Banner / Kenny / Larry Buchanan / Lembach / Mean Mike / Mega-Weapon / Morrissey / Mothra / Officer Mike / Sorri Andropoli / Steve Reeves / Toblerone / Tony Travis / Torgo the White / Valeria / Virtual Comedy Heckler / Winky
Pearl Forrester / Magic Voice / Jan / Amazon Woman / Barb / Jody the Nanite / Lady / Neighbor from Deep 12 / Party Go-er / Shelli the Nanite / Shelly the Nanite / The 'Nelson' Family / The Power Steves / Tourist
Gypsy / Rooster / Brian / Delivery Man / Fred 'Eggs' Eggleston / Lacks / Large creature / Mike's Socksy / Mikey / Norm / Pale Day Player #1 / Party Go-er / Patrick the Cheese Factory Dude / Roman Day Player / Roman Soldier / Slicer the Nanite / The 'Nelson' Family / Tourist / Villager / Yakof Smirnoff
Ned the Nanite / Observer / Ortega / Pitch / Extra Monkey / Holo-clown / Huggy Bear / Roman Day Player / Scooter the Space Child / Barnicle Bob / Brian / Carl Torgeson / Delta Knight / Doug / Finnigan / Institute of Mad Scientists Inspector / Karl / Matthew / Mookie the Nanite / Mutant / Nate the Nanite Clown / Pale Day Player #2 / Party Go-er / Rick the Electrician / Sandy / Stan Johnson / The Power Steves / Timmy Bobby Rusty / Tourist
Flavia / Doreen the Space Child / Nuveena / Adrienne Barbeau / Amazon Woman / Carla / Helen / Lisa Loeb / Lydia / Mr. 'B' Natural / Neighbor from Deep 12 / Party Go-er
Roman Day Player / Ann / Cindy / Magic Voice / Mutant / Overdrawn at the Memory Bank Technical Support Operator / Peasant / Staci / Steffi / Terror from the Year 5000 / Villager
composer: additional music / arranger: additional music / performer: additional music / composer: theme music / song writer / songwriter/arranger / arranger / arranger: for 'Hired! Song' / composer: "Alas, Poor Who?" theme / composer: additional music/perfomer: additional music / music / music supervisor / music: "Forrester's Theme Song" / music: "Oh, I Am Sad" / music: "Sodium" / music: "The Bouncy Upbeat Song" / music: "The Fifties" / music: "The Funky Seventies" / music: "Those Little Audition Numbers" / music: "To Earth!" / music: "When I Held Your Brain in my Arms" / music: "Where, O Werewolf" / music: "Who Will I Kill?" / performer: theme music / song writer: "I Wish I Was Back in Old Canada" / song writer: "Please Stay" / song writer: music / songwriter: for 'Hired' Song'
composer: additional music / arranger: additional music / arranger / arranger: for 'Hired! Song' / lyricist / lyrics: "To Earth!" / lyrics: "When I Held Your Brain in my Arms" / lyrics: Air on a Delta Knight / music: "When I Held Your Brain in my Arms" / music: Air on a Delta Knight / performer: additional music / song writer / song writer: "United Servo Academy Men's Chorus Hymm" / songwriter/arranger / songwriter: for 'Hired! Song'