Harold

Harold is one of the many one-off faces who drift through the Smith family's orbit, a minor figure whose appearance is brief and whose function is mostly comic texture rather than plot. He shows up, reacts to the chaos around him with ordinary bewilderment, and disappears without much fanfare.

The joke of a character like Harold is Justin Roiland stretching his own voice into yet another register, proof of how elastic his vocal range is across the show's enormous cast of throwaways. He works because the show trusts a single scene to be funny without needing the character to matter beyond it.