|First Appearance||The Bus Boy|
Otto is one of the students seen riding the bus with Dexter and Dee Dee. He only appears in the episode The Bus Boy.
Otto is a rotund boy with brown hair, black eyes, and has freckles on his face. He is seen wearing brown lederhosen with green lines and brown shoes.
Otto is of German descent, as indicated by his dialect. He told the story about how Billy Bloomberg got sent to the back of the bus after he spilled coffee all over the bus driver's lap, making her miss a chocolate chip on the road nearly rear-ending an ice cream truck.