Elliot Birch

Elliot Birch turns up on the edges of the Bridgeton world that Big Mouth builds around its awkward, hormone-addled kids, an adult figure whose presence adds another odd note to the show's already crowded gallery of grown-ups. He drifts through scenes with the deadpan strangeness the show favors for its side characters.

Fred Armisen's voice work thrives on small, peculiar choices, and Big Mouth gives him room to be weird in service of a joke rather than a plot. Even in a minor role, that specific comic instinct — dry, slightly off, never straining for the laugh — is what makes him memorable amid the show's louder chaos.