Es un científico loco que en una ocasión ya trabajó para Aldrin Klordane. Aunque Nimnul es inteligente y creativo, sus planes carecen de lógica. Es bajo, pelirrojo, y lleva gafas.
Personajes secundarios:Spunky • Charlie Cheddar y Kate Camembert • Tammy • Sra. Booby • Baby Booby • Conrad Cacatua • Sargento Spinelli • El Oficial Kirby y El Oficial Muldoon • Donald Drake y Plato • Frenchie • Que Sera • Clyde Cosgrove • Sr. Gribbish • Coronel • Buffy Ratzkiwatzki • El Profesor • Foxglove • Midge • El Oso Humphrey • Kookoo y Botas • Nemo • El Espíritu de la Lampara • Bric, Brac, y DTZ • Pepto Gizmo • Harry • Harriet • Hiram la Momia • Sir Colby • Tom • Butch, el Bulldog • Darby Spree • Cassandra • Queenie • Las Pi-Ratas • Capitán Coronel • Elliott • Ting-a-Ling y Ming-Ting • Bruin • Heebee y Jeebee • Roger • MacDuff • Steggy • Chirp Sing • Myron • Canina La Fur Villanos:Malacara • La Pandilla de Malacara • Maltese de Sade • Le Sewer y Ratatouille • El Profesor Norton Nimnul • Perros Robot • Normie • Aldrin Klordane • Percy • Juice-Lee • Billy el Calamar • Sewernose de Bergerac • Banshee • Rat Capone • Arnold Mousenegger y Sugar Ray Lizard • Ratas Espías • El Más Grande Espía del Mundo • Lahwhinie • Capitán Finn • Muchas Manos y El Sr. Estrella • Louie, el Puma • Tic Tac, el Cocodrilo • El Emenopio • Winifred • Bud • Lou • Sra. Sweeney • Todd • Jack y Nickels • Erol • Bebé Thaddeus • Monrovia y Pomona • Kismet • Dr. Piltdown • Burbujas • Irwina Allen • Quigley y Abba-Dabba • Lord Howie • Su Lin • Heinrich Von Sugarbottom • Wexler • Ratso Ratzkiwatzki • Moose y Rocco • Zsa Zsa Labrador
Episodios
Temporada Uno: "Catteries Not Included" • "Piratsy Under the Seas" • "Dale Beside Himself" • "Flash the Wonder Dog" • "Out to Launch" • "Kiwi's Big Adventure" • "Adventures in Squirrelsitting" • "Pound of the Baskervilles" • "Risky Beesness" • "Three Men and a Booby" • "The Carpetsnaggers" • "Bearing Up Baby" • "Parental Discretion Retired"
Temporada Dos: "To the Rescue" • "A Lad in a Lamp" • "The Luck Stops Here" • "Battle of the Bulge" • "Ghost of a Chance" • "An Elephant Never Suspects" • "Fake Me to Your Leader" • "Last Train to Cashville" • "A Case of Stage Blight" • "The Case of the Cola Cult" • "Throw Mummy from the Train" • "A Wolf in Cheap Clothing" • "Robocat" • "Does Pavlov Ring a Bell?" • "Prehysterical Pet" • "A Creep in the Deep" • "Normie's Science Project" • "Seer No Evil" • "Chipwrecked Shipmunks" • "When Mice Were Men" • "Chocolate Chips" • "The Last Leprechaun" • "Weather or Not" • "One-Upsman-Chip" • "Shell Shocked" • "Love is a Many Splintered Thing" • "Song of the Night 'n Dale" • "Double 'O Chipmunk" • "Gadget Goes Hawaiian" • "It's a Bird, It's Insane, It's Dale!" • "Short Order Crooks" • "Mind Your Cheese and Q's" • "Out of Scale" • "Dirty Rotten Diapers" • "Good Times, Bat Times" • "Pie in the Sky" • "Le Purrfect Crime" • "When You Fish Upon a Star" • "Rest Home Rangers" • "A Lean on the Property" • "The Pied Piper Power Play" • "Gorilla My Dreams" • "The S.S. Drainpipe" Temporada Tres: "Zipper Come Home" • "Puffed Rangers" • "A Fly in the Ointment" • "A Chorus Crime" • "They Shoot Dogs, Don't They"
Objetos
El Avión Rescatador • El Planeador Rescatador • El Águila Gritona • Gyrotanque • Meal-O-Matic • Lampara • Coo-Coo Cola • Rayo Gigantico
Canciones
Rescue Rangers Theme • Fat Cat Stomp • The Best of Everything • You're the Best Bee for Me • The Coo Coo Cola Song