Richard Costa

Richard Costa is the main antagonist of Ralph S. Mouse.

Role
When Ralph plays with the decorations and gets stuck in tape, Costa enters the room and finds Ralph. He gets out his dustpan and tries to catch Ralph, but it causes him to fall to the ground and Ralph frees himself. A chase is ensued throughout the room until Costa eventually manages to capture Ralph in a garbage bag. As he leaves, Ralph chews his way out and insults Costa.

After Ralph's maze game, a news reporter named Inez Pierce interviews with Costa and he declares that he will exterminate every mice in the school, much to the students' shock, including Ryan. Brad asks why Costa said is so bad and everyone boos at him. After Brad meets Ralph, he comes upon Costa, who introduces him to his ultimate mouse trap to capture any mouse for stuffing. Brad asks him if he'd ever catch a pet mouse, but he argues that all mice are the same. Brad informs Ryan about Ralph and warns him about Costa's trap. Brad distracts Costa and defeats him by causing his turbo floor waxer to go loose and tie him up, while Ryan stops Ralph and shuts off the trap.