Marrow Sucker is a Laistrygonian Giant who, along with Skull Eater and Joe Bob, infiltrated Percy Jackson's school, Meriwether College Prep in The Sea of Monsters, posing as visitors from Detroit.
Percy Jackson and the Olympians[]
The Sea of Monsters[]
While undercover, he and several other Laistrygonian giants join a dodgeball game with the school bully, Matt Sloan. During the game they transform into their true forms and attempt to kill Percy using flaming Celestial Bronze dodge balls. Marrow Sucker participates in this skirmish, but is eventually killed when Tyson throws flaming dodge balls back at him and the other Laistygonians.