Franchise: Garfield

Garfield's Scary Scavenger Hunt features a cameo from Lyman, Odie's original owner who disappeared from the Garfield comics in 1983, where he is chained up in the basement of the haunted house. This somewhat lines up with a joke in the 1998 book 20 Years & Still Kicking! Garfield’s Twentieth Anniversary Collection, where a comedic list of reasons for Lyman's disappearance was provided, with "Don't look in Jon's basement!" listed as #1. The difference from the book being that the Scary Scavenger Hunt game does not take place in Jon's house, nor is the haunted house ever said to belong to the Arbuckle family.

Lyman also makes a second cameo in the game's sequel Garfield's Scary Scavenger Hunt II: Donuts of Doom, where his severed head can be found inside of an oven.

Lyman would eventually reappear in The Garfield Show where he was said to have left for Australia to find cryptids and protect animals from poachers.

In Nickelodeon All-Star Brawl, Garfield was the 21st character intended for base game, with work starting on his moveset 4 months before All-Star Brawl's launch, requiring him to be delayed into a free post-launch DLC character alongside the 22nd character, Shredder. Game and moveset designer Thaddeus Crews - known to be a large Garfield fan - was so excited about the addition that he begged project manager and Ludosity CEO Joel Nyström to give him the permission to add emojis to the NASB development Discord server so he could spam emojis of Garfield. According to him, GameMill simply announced that Garfield would have to be on the roster out of the blue after a long period of uncertainty over who the 21st character in the game would be.

NASB would be - not counting images on social media posts - Garfield's first appearance in an official Nickelodeon-branded crossover, though he did previously crossover with Teenage Mutant Ninja Turtles in a comic in Teenage Mutant Ninja Turtles Magazine and the anti-drug PSA Cartoon All-Stars to the Rescue, long before either IP was bought by Nickelodeon.