Cookie Monster (1 episode)
Scooter / Janice / Beaker (voice)
Cookie Monster (voice)
Cookie Monster (voice) (1 episode)
Cookie Monster (voice) (1 episode)
Cookie Monster
Janice (voice) (10 episodes)
Cookie Monster
Cookie Monster (voice)
Baby Bear (voice)
Mecha Cookie Monster (voice) (52 episodes)
Cookie Monster
Scooter / Janice / Beaker / Wayne / Squid Ghost
Cookie Monster (voice)
Bob Dog / Grampy Hodie (voice) (40 episodes)
Creator
Cookie Monster (voice)
Scooter (voice) (6 episodes)
Cookie Monster (13 episodes)
The Muppets Puppeteer
Cookie Monster (voice)
Baby Bear / Cookie Monster / Letter Y / Sully / ... (voice)
Scooter / Janice / Beaker / Himself (voice)
Cookie Monster
Cookie Monster / Two-Headed Monster (voice)
Creator
Cookie Monster
Scooter / Janice (voice) (2 episodes)
Janice / Scooter (voice) (12 episodes)
Janice / Scooter / Satay (voice) (2 episodes)
Cookie Monster (Voice) (104 episodes)
Commercial Announcer (voice) (1 episode)
Scooter / Janice / Miss Poogy / Bobby Benson / Wayne (voice)
Cookie Monster
Scooter, Janice (voice)
Scooter (voice)
Scooter / Janice / Miss Poogy / Wayne (voice)
Scooter / Janice / Additional Muppets (voice)
Cookie Monster as the Cheshire Cookie Cat (voice)
Scooter, Janice, Camilla the Turkey (2 episodes)
Scooter / Janice (voice)
Baby Bear / Cookie Monster (voice)
Creator
Additional Muppet Performer (voice) (archive footage)
Baby Bear (voice)
Jack (voice) (27 episodes)
Creator
Cookie Monster (voice)
Cookie Monster
Milk (voice) / Cereal Girl (puppeteer)
Baby Bear / Hero Guy (voice)
Cookie Monster (voice)
Baby Bear / Two-Headed Monster (voice)
Baby Bear / Fat Blue / Caterpillar / Pestie / Collander Stenchman / Ice Cream Customer (voice)
green Grouch/Howard
Baby Bear (voice)
Baby Bear / Two-Headed Monster (2) / Sparky / Penguin (voice)
Baby Bear / Humphrey (voice)
Bobut (body, voice) (8 episodes)
Ned Mouse (voice)
Frog / Farmer Lear (voice) (archive footage)
Rat / Peter Cratchit / Old Joe / Swedish Chef (voice)
Bowser (voice) (31 episodes)
Frog (voice)
Donatello
Sweetums / Boo Monster (voice) (1 episode)
Additional Muppet Performer (voice)
Dr. Julius Strangepork (voice)
Farmer Lear (voice)
Miss Piggy's Photographer (voice)
Snort / Snail (voice)
Additional Muppet Performer (voice)
Two-Headed Monster (2632 episodes)
Cookie Monster / Two-Headed Monster (2744 episodes)