N

• Nat Crotchet
• Natalie Bird
• Neffi
• Nelly
• Nemo
• Night Train (character)
• Ninja Rogers
• Nurse Lisa
• Nurse Nightingale

O

• Octavia
• The Old Salt
• Oliver (clown)
• Osbert J. Smedley
• Otto the Grouch

P

• Pamela Monster
• Patricia the Parrot
• Perrito
• Phozzie the Phony
• Piggy (Muppet Kids)
• The Poky Little Puppy
• The Poobs
• Prairie Dawn's Dad
• Preston Changeo
• Professor Ronzo

Q

• Queen Agatha
• The Queen of France

R

• Rachel the Worm
• Rhonda Subicede
• Rosie (cousin)
• Rowlf (Muppet Kids)
• Rufus (firefly)
• Rustler

S

• Sally
• Sam (cat)
• Sandpaper Doozer
• Scooter (Muppet Kids)
• Scooter and Skeeter's Dad
• Scorchy Brownfinger
• Selmo
• Silly Annabelle
• Silver
• The Skate Fairy
• Slime-o
• Smedley
• The Snuffleupagus Fairy
• Socketwrench Doozer
• Speedy
• Squirmy
• Stan (turkey)
• Statler and Waldorf's relatives
• The Sugar Plum Fairy
• Sweetums' Mommy

T

• T.J. Bear
• Tennyson
• The Doozer Who Didn't
• The Great Garbanzo
• Tillie
• Titus
• Topaz
• Travis
• Tutterly T. Tutter

U

• The Ubiquitous Quilp
• Uncle Georgie
• Uncle Grady
• Uncle Jed
• Uncle Ralph
• Uncle Uno

V

• Victoria Joyce

W

• The Weather Demon
• The Whatnot Show
• Whouf
• Wormwood Soames
• Wuffles

Z

• The Zimmer Twins
• Zoe's Daddy
• Zonzo