Captain Spaulding's sidekick. Ravelli is a large, grotesque man who often wears a giant clown mask and is the mascot for Captain Spaulding's Museum of Monsters and Madmen. It is through his strength in which the cart moves when visitors go aboard on the MurderRide .

Ravelli suffers from eczema (a skin condition causing rashes all over the body), therefore is almost always covered head to toe in a white cream. He is, like Spaulding, a crazed killer. This is confirmed when he ambushes Killer Karl and hits him in the back with a large axe. Ravelli, the Professor, and Tiny are the only characters without a speaking role. His name is not given in House of 1000 corpses, but it is given by other sources. In the director's commentary of House of 1000 corpses, Rob himself calls Irwin Keyes' character 'Ravelli' And in Devils rejects, when the list of Groucho Marx characters is seen, the alias 'Ravelli' is seen.