Maxwell Atoms Movies

An evil sorceress transports the gang back to the age of chivalrous knights, spell-casting wizards, and fire-breathing dragons.

Alien werewolves from the Moon attack Earth and steal all the cheese. It's up to Mandy, Grim, Billy, and Sperg to stop the alien ploy.

Scooby-Doo and the gang team up with their pals, Bill Nye The Science Guy and Elvira Mistress of the Dark, to solve this mystery of gigantic...

When the Boogey Man causes Grim to lose his powers, rank, and title in the Underworld Court for misusing his powers, he plots to seek out Horror's...

A crossover with The Grim Adventures of Billy and Mandy and Codename: Kids Next Door. While Billy's Dad is underwear shopping, Billy wears his dad's...

Irwin, Hoss Delgado, Jeff the Spider, Fred Fredburger, and General Skarr from the "Grim Adventures of Billy and Mandy" team up to fight an evil candy...

A fun and funny tale about a sensitive, curious and rockin’ Naked Mole Rat named Wilbur who “scandalously” decides to (gasp!) get...

The Spider Queen wants to take revenge on Grim for denying her the rightful place as the Ripper.

Santa has been turned into a vampire, and only Billy and Mandy can turn him back and save Christmas.

A disembodied brain from a super villian known as Hector Con Carne attempts to take over the world with a doomsday machine.

Billy's hamster turned 10 in human years, but was awaiting to see the Grim Reaper. Billy and his friend, Mandy challenge the Reaper to a game of...

Jack, a headless prankster from Grim's past, uses Billy to steal Grim's scythe so he can destroy Grim and take over the world with demons from the...

Maxwell Atoms' debut short has his characters Billy and Mandy having fun with trepanation.