The Spider-Clown Mailman has appeared in Billy and Mandy's Big Boogey Adventure. Billy said he was afraid of nothing when he was going to get Horror's Hand. Irwin, Mandy, and Grim asked about spiders, clowns, and the mailman. Billy said he wasn't. Horror's Hand unleashed Billy's fear and the background turned into the inside of a circus and a car came and out comes a big person mixed between a spider, a clown, and a mailman. Billy started screaming and the Spider-Clown Mailman grabs Billy and said "Let's make you a pony, little boy!" as he blows Billy's nose and forms it into a pony and laughs evily. Mandy tried shooting the Spider-Clown Mailman, but he had a force field and Grim explained that Billy has to battle his own fear. When Grim go the hand, the Spider-Clown Mailman disappeared.