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Leo is the main antagonist of the 2019 sci fi horror musical tie-in film K-12, the partnering piece to the album of the same name by Melanie Martinez and also acts as the main antagonist in the music videos for the songs Detention and Recess. He was the second principal of K-12 Sleepaway School following his father's death at the hands of his former students, he later grew bitter upon hearing of a plot from Cry Baby and her friends to overthrow him leading to him going mad with power.

He was portrayed by Jesy McKinney.

Biography

Early Life

Not much is known about Leo's childhood and early adolescence aside from him being the son to the original principal, and seemingly had a decent childhood.

K-12

Leo was appointed principal of K-12 Sleepaway School after his father's death and first appears after a food fight broke out in the cafeteria. Demanding to know who started the fight, Kelly screams to him that it was Cry Baby's fault resulting in him placing her in detention. In the detention hall it was revealed that every student in there was tied to their seats and drugged, something which was also forced upon Cry Baby after Leo had left. He set her free reasonably quickly though.

Sometime later when watching students from across the school on monitors surrounding his office he notices Cry Baby and her friends and spies on them, realising they plan on overthrowing him just like they did his father. Enraged he descends quite quickly into madness and begins concocting a plan. He starts off by asking Cry Baby to his date to the dance, taking credit as the person who left her an invitation anonymously when it was actually one of his students Ben.

On the night of the dance he announces to all of the patrons from his office that he will not be overthrown and knew that he was being plotted against before forcing them all to dance until they die of exhaustion. Unbeknowst to him however Cry Baby also skipped out on the dance and uses her powers to trick him into thinking she's an attractive woman around his age. Fooled and instantly wooed he begins making advancements on her before she requests they go into the closest if they have sex, which he accepts. Once he enters however Cry Baby returns to her original form and locks him inside, sending him into an even further fury.

By the time he breaks free from the closest Cry Baby had already succeeded in reverting his damage and with the help of Ben used a giant spit bubble to incase the school and send it rising into the sky. In a fit of sheer fury Leo stands on his balcony, screaming before disappearing in a cloud of fog along with the school.

It's unknown if Leo was killed from suffocation from being intombed in the bubble or when the school and himself vanished or if he was simply cast out to another location.

Personality

Leo's personality is an enigma of sorts, although he's evil he is also rather reasonable (at first) and doesn't seem to run the school nearly as badly and cruelly as his father does although he does allow some inhumane punishments such as how he allows students in detention to be drugged and brainwashed.

After hearing of Cry Baby's plan to overthrow him however Leo's personality took a turn for the worst, with him becoming a cunning, manipulative, paranoid and sly sadist who became determined to stop any possible mutiny against him, whatever the cost.


He does still have his nicer sides to him however exemplified best when he asks Ben with genuine concern and apology in his voice if he's alright after bumping into him in the hall on his way to manipulate Cry Baby into going to the dance with him.

Appearance

Leo, was a tall, muscular young man with pale skin and brown hair styled into a pompadour. He is always seen wearing the same outfit, a white collarless shirt paired with light grey trousers and pale pink suspenders.

Trivia

  • In spite of being the main antagonist he is arguably the least evil villain in the entire film (aside from Cry Baby as the protagonist villain) since his descent into madness was a result of his own feelings of betrayal, although his methods of running the school beforehand were by no means humane.

Navigation

           WBLogo.png Villains

Animated Features
Meowrice | Meowrice's Henchmen | Mouse King | Mouse Queen | Joker | Phantasm | Salvatore Valestra | Arthur Reeves | Chuckie Sol | Buzz Bronski | Grundel Toad | Berkeley Beetle | Mr. Mole | Mrs. Toad | Ms. Fieldmouse | Queen Gnorga | King Llort | Darla Dimple | Max | Mrs. Prysselius | Thunder Karlsson and Bloom | Ruber | Griffin | Ruber's Minions | Bladebeak | Kent Mansley | Kralahome | Master Little | The Jokerz (Dee Dee Twins, Chucko & Woof) | Count Grisham | Cheswick | Mojo Jojo | Gangreen Gang | Anubis | Seto Kaiba | Dark Yugi | Pegasus J. Crawford | Mokuba Kaiba | Marik Ishtar | Ebenezer Scrooge Puppet | Barkis Bittern | Maudeline Everglot | Stan Beals | Noah the Elder | Leopard Seal | Aguila | Stone Generals (Gato & Mono) | Karai | Foot Clan | Eddy's Brother | Kanker Sisters | Kevin | Surtr | Nyra | Kludd | Pure Ones | Lord Business | Super Secret Police (Bad Cop & Sheriff Not-A-Robot) | Duplo Aliens | Mr. Ross | Future Mordecai | Rigby | Benson Dunwoody | Muscle Man | Hunter | Pigeon Toady | Wolf Pack | Penguins | Joker (Lego) | Harley Quinn (Lego) | Phantom Zone Criminals | Catwoman (Lego) | Poison Ivy (Lego) | Two-Face (Lego) | Lord Garmadon | Slade (Teen Titans Go!) | Balloon Man (Teen Titans Go!) | Lex Luthor (Teen Titans Go!) | Stonekeeper | Rex Dangervest | Velociraptors (Lego) | Foot Clan (Shredder & Baxter Stockman) | League of Assassins (Ra's al Ghul (Batman vs. TMNT), Ubu (Batman vs. TMNT) & Talia al Ghul (Batman vs. TMNT)) | Joker (Batman vs. TMNT) | Harley Quinn (Batman vs. TMNT) | Scarecrow (Batman vs. TMNT) | Mr. Freeze (Batman vs. TMNT) | Poison Ivy (Batman vs. TMNT) | Bane (Batman vs. TMNT) | Two-Face (Batman vs. TMNT) | Penguin (Batman vs. TMNT) | Hexagon (Trigon (TTG) & Trigon (Original)) | Spinel | Pink Diamond | Scorpion | Quan Chi | Shang Tsung | Goro | Shao Kahn | Kano | Baraka | Reptile | Moloch | Motaro | Dick Dastardly (2020) | Muttley (2020) | Rotten Robots | Dusty | Cerberus

Live Action Films
Jack Torrance | Hotel Caretaker | Lorraine Massey | Socs (Bob Sheldon, Randy Adderson, Paul Hoden & David) | Mrs. Cade | Scut Farkus | Grover Dill | Stripe | Ruby Deagle | Gremlins | Mama Fratelli | Audrey II | Orin Scrivello | Mr. Igoe | Max | David | Beetlejuice | Sandworms | Joker | Bob the Goon | Alicia Hunt | Carl Grissom | Max Eckhardt | Vinnie Ricorso | Joe Chill | Witches (Grand High Witch, Susan Irvine, Nicola Cuttle, Pamela, Lois Leffour, Mildred, Elizabeth, Henrietta, Jacqueline & Beatrice) | Brain Gremlin | Daffy | George | Lenny | Bat Gremlin | Electric Gremlin | Cushing Catheter | Penguin | Max Shreck | Catwoman | Red Triangle Circus Gang | Charles "Chip" Shreck | Dr. Charles Nichols | Frederick Sykes | Lawrence Van Dough | Ferguson | Lestat | Clarice Kensington | Miss Minchin | Riddler | Two-Face | Sugar | Spice | NygmaTech (Frogmen) | Neon Gang | Salvatore Maroni | Jonas Miller | Mr. Swackhammer | Monstars | Martians (Martian Leader, Martian Ambassador & Martian Girl) | John Wesley | Poison Ivy | Mr. Freeze | Bane | Grant Frost | Agent Smith | Cypher | Agents (Agent Jones, Agent Brown & Agent Johnson) | Susan McCallister | Jim Whitlock | Mako Sharks | Mr. Tinkles | Thrax | Mayor Phlegmming | Bruiser | Joe Cramp | Thrax's Henchmen | Scrappy-Doo | N' Goo Tuana | Zarkos | Demons | Luna Ghost | Akasha | Spiders (Consuela & Tank) | Mr. Chairman | Bob Smith | Clara Dalrymple | Sir Trenton | Ruffshodd | Trenton's Pride | Ra's al Ghul | Scarecrow | Carmine Falcone | League of Shadows (Decoy of Ra's al Ghul) | Victor Zsasz | Joe Chill | Jonathan Jacobo | Arthur Slugworth | V | Adam Sutler | Lewis Prothero | Norsefire | Peter Creedy | Colonel Coetzee | Captain Poison | Zodiac Killer | Arthur Leigh Allen | Xerxes | Agent 23 | Siegfried | Dalip | Joker | Two-Face | Sal Maroni | Gambol | Joker's Thugs | Principal Deedle | Ezekial Gallows | Prudence Prufrock | Lord Henry Blackwood | Lord Coward | Esther Coleman | Decoy Queen | Kitty Galore | Paws | Mayor Brown | Wanda Grubwort | Lake Monster | Mal Cobb | Blue Jones | Angelique Bouchard | Dr. Julia Hoffman | Bane | Talia al Ghul | Barsad | Catwoman | John Daggett | Tom Buchanan | Jay Gatsby | Myrtle Wilson | George Wilson | Daisy Buchanan | Precursors | Kaiju (Trespasser, Knifehead, Mutavore, Otachi, Leatherback, Raiju, Scunner & Slattern) | Artemisia | M.U.T.O. | Dr. Mann | Victoria Vinciguerra | Léon Rom | Skullcrawlers (Skull Devil) | Preston Packard | IT | Bowers Gang (Henry Bowers, Patrick Hockstetter, Belch Huggins & Vic Criss) | Alvin Marsh | Butch Bowers | Mathias Vogel | Ana Miller | Nolan Sorrento | Innovative Online Industries (I-R0k, F’Nale Zandor & Sixers) | Claire Wyden | Brett Wyden | George, Ralph and Lizzie | The Meg | Jack Morris | Shere Khan | Tabaqui | Howard Clifford | Ditto | Sebastian | Ann Laurent | King Ghidorah | Rodan | Alan Jonah | Asher Jonah | Emma Russell | The Banana Splits (Fleegle, Drooper, Snorky & Bingo) | Poppy | Karl | Leo | Cry Baby | Kelly | The Principal | The Biology Teacher | Arthur Fleck | Penny Fleck | Randall | Clowns (Joker) (Clown & Ambulance Clown) | Wall Street Three | Penny Fleck's Boyfriend | Rose the Hat | The True Knot | Andrei Sator | Priya Singh

Shorts
Daffy Duck | Sylvester | Tasmanian Devil | Wile E. Coyote | Elmer Fudd | Yosemite Sam | Marvin the Martian | Instant Martians | Gossamer | Tom | Jerry | Spike

Television
The Grinch | Cousin Mel | I.M. Slime | Snow Miser | Heat Miser | North Wind

See Also
Batman Villains | Catwoman Villains | Cartoon Network Villains | DC Extended Universe Villains | Eraser Villains | Game of Thrones Villains | Gremlins Villains | Hanna-Barbera Cinematic Universe Villains | Harry Potter Villains | Lethal Weapons Villains | Looney Tunes Villains | Melanie Martinez Villains | Middle-Earth Villains | MonsterVerse Villains | Mortal Kombat Villains | Pokemon Villains | Powerpuff Girls Villains | Regular Show Villains | Rick and Morty Villains | Robot Chicken Villains | Rush Hour Villains | Scooby-Doo Villains | Steven Universe Villains | Superman Villains | The LEGO Movie Villains | The Matrix Villains | Tom and Jerry Villains | TMNT Villains | Wild Wild West Villains | Xiaolin Showdown Villains | Yu-Gi-Oh! Villains

           Melanie Martinez (logo).png Villains

Main
Cry Baby

Crybaby
Big Bad Wolf | Mr. Potato Head

K-12
Leo | Kelly | The Principal | The Biology Teacher

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