Waitress

A waitress passing through the chaotic world of Big Mouth, she appears as a small, human anchor amid the show's hormonal monsters and animated absurdity. She takes orders, keeps her composure, and treats the show's teenage characters with the weary patience of someone who has seen far stranger customers than this.

Jenny Slate brings her sly, deadpan comic timing to even a glancing role, turning a few lines of service-industry banter into something wryly alive. It's a small part, but it shows how Big Mouth uses its bench of talented voices to make even background figures feel like real, funny people.