Mecha-Stefan the "Mecha-Tech" Mecha-Technician is a three-headed robot that appeared in Trading Day, Total Recall, Refill Madness, No Toy Story and Robo-mance.

Characters
Main & Supporting Characters Fanboy | Chum Chum Kyle Bloodworth-Thomason | Boog Shlizetti | Lenny Flynn-Boyle | Yo | Oz Harmounian Hank Mufflin | Dollar-nator | Russ Poopatine | Man-Arctica Miscellaneous: The Hall Monitors Square Dance Band
Minor Characters Chris Chuggy | Lupe | Michael Johnson | Duke | Nancy Pancy Francine | Cher Leader | Cheech | Fankylechum Scrivener Elf | Necronomicon | Berry the Ice Monster | Mrs. Harmounian Thorvald the Red | Lunch Lady Cram | Mildred | Madame LaVache | Miss Olive | Nurse Lady Pam Greg Johnson | Fedora Man | Secret Shopper | Retchy Lintpockets | Lucky Charlie | Bus Lady Cram Yum Yum | Mr. Roboto | Moppy | Muk Muk | Blue Berries | Fanman Sigmund the Sorcerer | Marsha | Dr. Acula | Stinks | Mr. Trick | Lemuel Professor Flan | Brizwald Harmounian | Global Warmer | Wizard Tooth Fairy | Copy Kitten Monster in the Mist | Scampers | The Burgle Brats (Murphy | Joey | Molly) | Benjamin | The Gooper Griffin | Chimp Chomp | Precious | Mitzi | Sprinkles | Scooter Julie Android | Mrs. Dollar-nator | Mecha-Tech | Agent 8
Unused Characters Kraken Twins | Vamps