The Slim Slime Man (voiced by Neil Crone) - A bitter old sewer worker, who abnormally fused with a living slime mold while working in the sewers one day, becoming a strange giant slime creature with a ghoulish skull-like head seen inside. As he gets more powerful, he aims to cover the surface world with living slime molds.
- Real Name: Slim
- First Appearance: Episode 2 ("The Slim Slime Man")
- .....................slime man