Vestigial Peter

Fed up with Peter's old, tattered, shirt, Lois takes him to the mall to buy a new outfit for church. When Peter struggles with the top button, they notice a large lump on his neck. Alarmed, they rush to the hospital where Dr. Hartman guesses that it’s an incomplete vestigial twin.

Season 12 | Episode 2

Seth MacFarlane

Peter Griffin

Alex Borstein

Lois Griffin

Seth MacFarlane

Stewie Griffin

Mila Kunis

Meg Griffin

Seth Green

Chris Griffin

Seth MacFarlane

Brian Griffin

Seth MacFarlane

Glenn Quagmire

Patrick Warburton

Joe Swanson

Mike Henry

Cleveland Brown