The Rotten Robots are major antagonists in the 2020 Warner Bros. animated film Scoob!. They are the primary minions of the supervillain Dick Dastardly and are replacements for Muttley whom was lost in the Underworld.
The Rottens are small robots resembling infants with fins on their heads, purple round eyes, and short arms and legs. When attacking or flying, they transform into scorpion-like droids with sharp teeth.
The Rottens were sent by Dick Dastardly to capture Scooby Doo and Shaggy in a bowling alley and they chase the duo down into a back alley until Shaggy and Scooby were beamed up into the Falcon Fury, the ship of the Blue Falcon.
Sometime later, the robot horde later retreated and returned to their master, who tracked the Falcon Fury with his own airship the Mean Machine. Having the Rottens pilot the ship, Dastardly commanded them to attack and give chase, although this failed as Dee Dee Skyes used the beam that was used on Scooby and Shaggy to push the Mean Machine away despite the ship using harpoons to latch on the Falcon Fury.
Inside of the Mean Machine, the Rottens were chastised by Dick for their failure to capture Scooby and are told that they are not nearly as good as his last sidekick Muttley, who is alluded to have more competence than the robots. One of the Rottens, Dusty, apologizes for their failure, but that only upsets Dastardly more. He calls him a "suck-up," and, to prove a point to the other Rottens, he removes his head and replaces it with the top of a vacuum cleaner.
They later attacked Scooby, Shaggy, and the Falcon Fury crew in an abandoned amusement park in Romania, as a group of Rottens cornered the former two in a building; this allowed Dick Dastardly to shoot Shaggy out of the building and pursuit Scooby. Dastardly later called upon another group to carry a bumper car he's in to go after Scooby, who is joined by Dynomutt and Shaggy and Blue Falcon, only for him and the Rotten robots to fail as they both fall.
One of the robots, a red Rotten who was first examined by Velma, Fred, and Daphne to track down Dastardly's location, managed to send the trio's location to him; the robot was later joined by the others hidden in a police car and they capture the group and took them to the Mean Machine to be imprisoned. All of the Rottens soon gathered around as Dick used two of the skulls to reveal the third one's location and eventually had Velma and Daphne sent back to their cell (as they previously escaped before) as Fred is left behind by Dastardly.
Following Dick Dastardly's success in stealing the final skull, along with kidnapping Scooby, the Rottens accompany him to the Parthenon in Athens, Greece, where they tried to shoot down the newly arrived Mystery Machine appears in the sky, having been transformed to have wings and jets. However, Dusty interfered by purposely have a Rotten misfire so that Daphne's life is saved because of the former's change of heart from her kindness previously, though the Mystery Machine gets hit regardless; this will eventually led to Dusty rallying up the entire Rotten entourage to help the Mystery Inc. gang and the Falcon Fury crew in defeating Cerberus. They soon capture Dick Dastardly and Muttley (who are escaping from the Underworld with the treasure) and brought them to the two groups.
Television Scooby Doo, Where are You!: Black Knight | Phantom | Captain Cutler | Miner 49er | Indian Witch Doctor | Elias Kingston | Apeman | Charlie | Puppeteer | Ghost Clown | Big Bob Oakley | Mummy | Witch | Bald Zombie | Space Kook | Redbeard | Phantom Shadow | Snow Ghost | Ghost of Mr. Hyde | Scare Pair | Zen Tuo | Caveman | Creeper | Phony Phantom | Witch Doctor | Werewolf | Wax Phantom The New Scooby-Doo Movies: Gunslinger | Geronimo | Hooded Man | Vulture | Scarecrow | Captain Moody's Ghosts | Phantoms | Zalia Z. Fairchild | Shark Men | Cackling Skeleton | Ghost of Bigfoot | Red Baron | Redbeard's Ghost | Haunted Horseman | Moat Monster | Viking Mannequin | Davy Crockett Mannequin | Dryad | Troll | Ghost of Paul Revere | Minuteman Ghost | Redcoat Ghost | Hooded Ghosts | Captain Scavenger | Injun Joe | Jadal | Fireball McPhan | Lorne Chumley | Windmakers | Green Globs | Ghostly Strongman The Scooby-Doo Show: Ebenezer Crabbe | Netty Crabbe | Ghost of King Katazuma | Aztec Statue Monster | Gator Ghoul | 10,000 Volt Ghost | Headless Horseman | Ghost of Merlin | Black Knight | Dr. Coffin | Ambulance Guys | No-Face Zombie | Gorilla | Mamba Wamba | Zombie Lila | Mamba Zombie | Demon | Tamuka | Medicine Man Ghost | Demon Shark | Octopus Monster | Kelp Monster | Captain Pescado | Rambling Ghost | Technicolored Phantoms | Spirits of '76 | Viking Ghosts | Gramps the Vamp | Pterodactyl Ghost | Phantom of Milo Booth | Phantom Racer | Witch McCoy | Zombie | Futuristic Monster | Sea Creature | Captain Clements | Willawaw | Owlmen | Skeleton Men | Snow Beast | Ghost Witch of Salem | Tar Monster | Ghost of Finnyan McDuff | Old Iron Face | Jaguaro | Cat Creature | Mantis Creature | Disc Demon | Moon Monster | Ghostly Gondolier | Ghost of Juan Carlos | Anthos | Beast of Bottomless Lake Scooby-Doo and Scrappy-Doo: Blue Scarab | Night Ghoul | Alien | Neon Phantom | Snake Demon | Sky Skeleton | Dragon Beast | Devil Bear | Sea Beast | Lady Vampire of the Bay | Star Creature | Shadow Creature | Ghost of Jeremiah Pratt | Great Haldane | Minotaur | Carl and Tony The Richie Rich/The Scooby-Doo Show: Sylvester | The Burglar | Arabian Magician | Cat Man | Sailor | Werner Wolf The New Scooby and Scrappy-Doo Show: Olaf the Terrible | Viking Pirates | Seaweed Monster | Great White Shark | Mud Monster | Hound of Bakervilles | Dinosaur | Creature from the Chem Lab | Masked Manx | Mr. Cyclops | Ivan | Randar the Ape-Man | Neanderthal Monster | Chameleon | Phantom of the Soaps | Clown | The Minotaur | Casey O'Reily | Gremlin | Specter of Sports Cars | Chef Maras | Mummy | McBaggy Roger The New Scooby-Doo Mysteries: Red Skull | Maid Mummy | Norma Deathman | Sea Demons | Cyclops | Mastermind | Giant Bees | Ebenezer Overview | Codefinger | Zombies | Evil Elf | Mad Sea Lion | Dr. Van Helsing | Ghost of George Washington | Ghost of Abraham Lincoln | Colonel Beauregard | Laser Band Thief | Ghost of Sherlock Holmes | Monster Mutt | Monster Mouse | Ghost of Christmas Never The 13 Ghosts of Scooby-Doo: Bogel and Weerd | Werewolves | Maldor the Malevolent | Queen Morbidia | Reflector Specter | Zomba | Captain Ferguson | Nekara | Marcella | Time Slime | Demondo | Rankor | Professor Phantazmo | Zimbulu A Pup Named Scooby-Doo: Green Ghoul | Sludge Monster | Cheese Monster | Dr. Croaker | Al Cabone | Manny the Mauler | Boogedy Bones | Ice Demon | Samurai Ghost | Headless Skateboarder | BooBeard | Totem Spirit | Ghost Chef | Stinkweed | Dogcatcher Ghost | Alien Slug | Ghost of Purvis Parker | Chickenstein | Burger Monster | Dinkley 2000 | Zombo | Boogey Biker | Astronaut Ghost | Bigwig | Hooded Heifer | Moving Mollusk | Nasty-Doo | Buster McMuttMauler | Ghost of Mrs. Shusham | Waitro What's New Scooby-Doo?: Snow Creature | Dinosaur Spirit | Space Ape | Leland Brothers | Possessed Mystery Machine | Ghost of Rufus Raucous | Jungle Demons | Motoshondu | Headless Snowman | Living Toys | Faceless Phantom | Zombie Gladiator | Baseball Specter | 30 Foot Shaggy | Mummy | Mademoiselle Chantal | Gusano Grande | Jeeves | Vampire | Marcy | Cat Creature | San Franpsycho | Invisible Madman | Scooby Snack Monster | Glasburgh Dragon | Fish Fiend | Wakumi | Centaur | Creepy Keeper | Cold Steel | Evil Mystery Inc. | Titanic Twist | Demon Farmer | Frozen Fiend | Menacing Metallic Clown | Toxic Terror | Hong Kong Dragon | Skeleton Driver | Gold Monster | Coral Creature | Rama Yam | Osomon Scooby-Doo! Mystery Incorporated: Slime Mutant | Gator People | Ghost Truck | Man-Crab | Que Horrifico | Alice May | Phantom | Gnome | Humungonauts | Fright Hound | Vampire | Char Gar Gothakan | Cicada Creature | Lord Infernicus | Shadowy Orc | Aphrodite | Danny Darrow | White Wizard | Nightfright | Fish Freaks | Manticore | Headless Horror | Shadowy Figure | Dead Justice | Obliteratrix | Freak of Crystal Cove | Crybaby Clown | Baba Yaga | Dreamweaver | Junk | Graveyard Ghoul | Dark Lilith | Hebediah Grim | Fiend | Scarebear | Dragon | Dr. Zin | Mummy | Aliens | Rude Boy and the Ska-Tastics | Gluten Demon | Dandy Highwayman | Fake Fred | Old Daphne | Priestess | Mr. E | Ed Machine | Professor Pericles | Evil Entity | Krampus (Scooby Doo: Mystery Incorporated | Kriegstaffebot | Be Cool, Scooby-Doo!: Elias Kingston | Zatari Warrior Spirit | Sea Creatures | Gargoyle | Ghost of Chip Braverton | Sobek | Crystal Crawler | Headless Count | Ghost of Prima Donna | Yeti | Butler 3000 | Alien | Phantoms | Pterodactyl | Stealin' Stan | Gremlin | Sorcerer | Swamp Beast | Mr. Roundy | Cyclops | Scarecrows | Cliff Bride | El Bandito | Madcap | Viking Ghosts | Toxic Mutant | Baba Yaga | Dorsalfoot | Werewolf | Evil Jester | Houndbeast | Disorient Express Monsters | Kaniaku | Ghost of Amos Littlefield | Skull Alien | Ghost of Mother | Ghost of Archie Barnes | Mutant Rabbit | Arachne | Vampire | Plant Monster | Minus | Bubby | Iceman | Ape Man | Garbage Monster | Ghost Chef | Demon of Salem | Professor Huh | Rose Scooby-Doo and Guess Who?: Bee Man of Alcatraz | Swamp Monster | Ghost Sergeant | Fish Monster | Screaming Skulls of London | Cat Mummy | Minotaur | Hugo Hauser | Madds Markson Monster | Technomancer | Spectral Speedster | Dinosaurs | Sia Doppelganger | Pazzo the Ghost Clown | Man-Bat | Joker