Floyd Pepper / Robin the Frog / Crazy Harry / Lew Zealand / Camilla / Dr. Bunsen Honeydew (assistant) (voice)
Camilla / Lew Zealand / Floyd / Bear / Chicken / Crazy Harry / Dog / Dr. Julias Strangepork / Granny / Penguin / Pops / The Count (voice)
The Big Bad Wolf / Boy (voice)
Self
Count von Count / Herry Monster / Additional Muppets (voice)
Floyd Pepper / Pops / Lew Zealand / Crazy Harry / Louis Kazager
Statler (voice)
Count / Pestie / Grouch Mayor / Grouch Cop (voice)
The Amazing Mumford
Dr. Sigmund Sillystuff (voice)
Balthasar (voice)
Mr. Johnson/Herry Monster/Townsperson (voice)
Whatnot Monster (voice)
T.R. the Rooster / Caleb Siles (voice)
Robin / Featherstone (voice)
Sgt. Floyd Pepper / Robin the Frog / Camilla the Chicken / Slim Wilson (voice)
High Priestess / Dying Emperor (voice)
Gobo Fraggle / Pa Gorg (voice)
Fred
Various Muppets
The Big Bad Wolf / Farmer Brown / Boy (voice)
Thog / Zippity / Snivelly (voice)
Count Von Count as the Counter-pillar (voice)
The Count
Robin / Statler / Ubergonzo (voice)
Robin the Frog / Camilla the Chicken / Floyd Pepper / Lew Zealand / Pops / The Count / Gobo Fraggle / Herry Monster
Gobo Fraggle / Pa Gorg/ Marjory the Trash Heap (voice)
Jackman Wolf/Little Jerry/Count von Count/Farley (voice)
P. Fenton Cosgrove (voice)
Mad Monty / Boar / Lew Zealand / Shrimp / Whatnots (voice)
Ralph Robin / Jack (voice)
Floyd Pepper / Robin the Frog / Crazy Harry / Camilla
Floyd Pepper / Robin the Frog / Crazy Harry / Camilla
The Count (voice)
Lew Zealand / Floyd Pepper / Dr. Strangepork / Pops
The Count / Two-Headed Monster (1) / Biff (voice)
Telethon Announcer (voice) (uncredited)
Self
Self (archive footage)
Gobo Fraggle / Marjorie the Trash Heap / Pa Gorg / Self
Snuffy / The Count (voice)
Count von Count / Mr. Johnson / News Flash Announcer (voice)
Count von Count (voice)
Count von Count / Mr. Johnson (voice)
Channel Announcer
Robin the Frog / Statler / Announcer / Pops / Floyd Pepper
Herry Monster (voice) / Frazzle (voice) / Maurice Monster (voice) / Two-Headed Monster (left half) (voice) / Announcer (voice)
Emmet Otter / Weasel / Doc Bullfrog / Melissa Rabbit / Yancy Woodchuck (voice)
Robin the Frog / Montague the Rat / Big Bad Wolf (voice)
Lew Zealand / Pops / Julius Strangepork /Floyd Pepper (voice)
Camilla / Lew Zealand / Robin the Frog / Sgt. Floyd Pepper (voice)
Self
Statler / Blind Pew / Mad Monty / Floyd Pepper / Lew Zealand / Tomato / Pirate / Skulls / Trelawney's Butler / Screaming Cat (voice)
Count von Count and Herry Monster
Monk
Gobo Fraggle (voice)
Self / Count von Count / Two-Headed Monster (voice)
Muppet Performer
Snivelly (voice)
Camilla the Chicken / Ma Bear / Floyd Pepper / Robin the Frog (voice)
Featherstone / Stepsister #2 (voice)
Announcer (voice) (uncredited)
Two-Headed Monster (voice)
Camilla / Count von Count / Crazy Harry / Dr. Julius Strangepork / Lew Zealand / Robin the Frog / Louis Kazagger / Sgt. Floyd Pepper / Two-Headed Monster (Frank) / Gobo Fraggle
Self
Self (archive footage)
Self
Sgt. Floyd Pepper (voice)
Gobo (voice)
Dr. Julius Strangepork / Robin the Frog / Lew Zealand (voice)
Count von Count / Jackman Wolf (voice)
Tiny Tim Cratchit / Jacob Marley / Ghost of Christmas Present / Lew Zealand / Ma Bear / Mouse / Mr. Applegate / Penguin / Pig Gentleman / Pops / Rat (voice)
The Count / The Amazing Mumford / Herry Monster / Biff (voice)
Kermit the Forg / Kermit the Gorf / Kermit the Grof / Green Anything Muppet in Fat Cat (voice) (archive footage)
Two Heated Monster / "In My Book" Singer (voice)
Herry Monster (voice)
Carlos / Parker (voice)
Count von Count / Smartest and Fastest People (Bedtime Stories and Songs) / Moonshine Singer (Sleepytime Songs & Stories) (voice)
Mr. Johnson (voice)
Robin the Frog
Count von Count / Herry Monster / Mr. Snuffleupagus (voice)
Self
Bubba / Spot (voice)
Various characters (archive footage)
Count von Count / Herry Monster
Bread Roll in "Meal Break"
Robin the Frog (voice)
P. Fenton Cosgrove
The Count / Mr. Johnson / ... (archive footage) (uncredited)
Mr. Johnson / Fred the Wonder Horse / Maurice Monster (voice)
Floyd Pepper
Additional Muppet Performer (voice) (archive footage)
Frazzle / Herry Monster / Count von Count / Mr. Johnson / Christopher Columbus (voice) (archive footage)
Robin
Donder (voice)
Two-Headed Monster / The Count (voice)
Green Anything Muppet Boy / Announcer (voice)
Count von Count
Fred the Wonder Horse
The Count
The Count
Robin the Frog / Lew Zealand / Floyd Pepper / Announcer (voice)
Aloysius Snuffleupagus
General Public
Gobo Fraggle / Marjory the Trash Heap / Pa Gorg / Uncle Gobo Fraggle / Mervin Merggle / Fishface / Parrot / Architect Doozer / Feenie Fraggle / Radio Announcers (voice)
Floyd Pepper, Dr. Julius Strangepork, Pops, Robin the Frog, Lew Zealand, Louis Kazagger, Chicken, Crazy Harry (voice)
Statler / Jowls / Mama Fiama
Emmet Otter
Self
Floyd Pepper (voice only in the first episode)
Self - Guest
Monk
Balthazar / Bratty Rat / Datz