Cast[]
- Big Bird as Peter Perfect
- Cookie Monster as Rufus Ruffcut
- Elmo as Sawtooth
- Grover as Private Meekly
- Mr. Johnson (Fat Blue) as Sgt. Blast
- Simon Soundman as Mac
- Harvey Monster as Danny
- Snuffy as Ring-A-Ding
- Lefty the Salesman as Clyde
- Professor Hastings as Rug Bug Benny
- Sherlock Hemlock as Willy
- Maurice Monster as Kirby
- Herbert Birdsfoot as Professor Pat Pending
- Zoe as Penelope Pitstop
- Ernie as Rock Slag
- Bert as Gravel Slag
- Frazzle as Big Gruesome
- Count von Count as Little Gruesome
- Kermit the Frog as Red Max
- Forgetful Jones as Lazy Luke
- Herry Monster as Blubber Bear
- Oscar the Grouch as Dastardly
- Slimey as Muttley
- Guy Smiley as The Commander
- Kermit the Forg as The Dragon
- Farley as Elmer
- Rosita as The Girl Alligator
- Little Bird as Yankee Doodle Pigeon
- Harvey Kneeslaper as Clunk
- Telly Monster as Zilly
- Dr. Nobel Price as Mad Scientist
- Abby Cadabby as Chug-A-Boom
- Prarie Dawn as Breena
- Huxley as The Hooded Claw
- Sam & Sid Sleaze as The Bully Bros.