Jeffy is the secret (but real/actual) main antagonist of SuperMarioLogan, as it was revealed in Jeffy's Bad Word and then Jeffy's Tantrum.
Trivia[]
- He smokes his pencil using his nose.
| Characters | |
|---|---|
| Main characters | Mario • Chef Pee Pee • Bowser Junior • Joseph • Cody • Rosalina • Jeffy • Brooklyn T. Guy |
| Recurring characters | Mr. Goodman • Jackie Chu • Tyrone • Judy • Karen • Penelope • Jonathan • Simmons • Steve Staleburger • Judge Pooby |
| Minor characters | Doofy the Dragon • Bowser • Toad • Black Yoshi • Bully Bill • Shrek • Charleyyy • Chief • Margaret • Craig the Devil • Screwball • Thomas • Ken • Patrick • Pink Yoshi • Principal Steinbeck • Harold Wilfred • Banzai Bill • Diddy Kong • Golden Thomas • Hansel • Kirby • Chris the Cucumber • Felipe • The Rat • Emily Coleman • Pixie Goblin • Samantha • Wario • Waluigi • Tyreese • Tom Brady • Mr. Winkle • Carlos • Candy • Candy's Father • Mickey Mouse • Ray Cheesy • D-Money (boy) • Jackie Twu • Mine! Bird • Scooter • Loan Dolphin • Sonic • Chef Poo Poo • Chompy • Alien • Dr. Fredrick Finkleshits • Jacques Pierre François • Crystal • Barack Obama • Mr. Dinkle • Alien's Wife • Terrance • Melvin • Does Bad Things Guy • Gumbo • Drawing Jeffy • Cookie Monster • Vladimir Smirnov • Super D • God • Richard Goodman |
| One-Time characters | Dark Matter in my Shorts • Chef Luigi • The Crocodile • Brooklyn T. Guy's Son • Joseph's Girlfriend • Remy • Sheila Perkins • Popeye • The Cat in The Hat • Diffy the Dragon • Birdo • Polly the Parrot • Kidnapper • Katy • Joseph's Dad • Jeff The Killer • Killer Clown • Other Killer Clown • Chaz • Junior Junior • Stephen Hawking • Pee Pee Suck • Wormy • Easter Bunny Genie • Piggie • Green Bean Giant • Poof • Greg the Pig • Dewey Donedidit • Catherine Catfish • Bunghole • Shelby • Kool-Aid Man • Beary • Sharky • Big Bwah • Boofy the Moose • Chester the Chicken • Prince Charles • More... |
| Classic Characters | Big Red • Kung Pow • Baby Peach • Taco Bell Chihuahua • Mama Luigi • Speedy • Pimpster Goomba • Skittles • Shrek Junior • Taliban • Blue • Chad • King Pig • Ray the Pig • Helmet Pig • Yoshi • Koopa Troopa • Atso • Brown Elephant • Lazlo • Mr. Pig • Peach • Tony the Tiger • Woody • Mr. Magoo • Luigi • Donkey Kong |
| Cast | Logan Thirtyacre • Lovell Stanton • Lance Thirtyacre • Chris Netherton • Chilly Jimenez • Elaina Keyes • Tito Jimenez • Anthony Miller • Matthew Reber • Savannah Johnson • Julian Jimenez • Donald Rodriguez • Rebecca • Lilly Thirtyacre • Will Townsend |
| [How does it work?] | |