Señor Arroyo

Señor Arroyo teaches Spanish at the middle school, delivering absurd non-sequiturs and thin justifications with total sincerity. He's a background-turned-recurring gag figure, popping into scenes to say something bizarre or inappropriate before vanishing again, treating the classroom as a stage for his own strange logic rather than actual instruction.

He works because the show trusts a joke can be pure texture rather than plot — a teacher whose entire function is escalating non-sequitur. Nick Kroll plays him with straight-faced conviction, never winking at the absurdity, which is exactly what makes the character's left-field interruptions land as reliably funny rather than just filler.