|First Appearance||Dexter's Rival|
|Voiced By||Frank Welker ("Dexter's Rival")|
Tom Kenny ("Sister Mom")
He is a rotund and light-skinned man with brown balding hair and a big nose. He wears a formal suit with brown pants with a white dress shirt and a red tie.
He seems to be a calm and reasonable fellow who takes pride in his star students like Dexter and wishes to see them do their best. He seems to get along well with the School Counselor and is willing to have lunch with her.