Knab Membrane (originally from Invader Zim) is the father of Dib Membrane, and former paranormal investigator. He was Monty's second partner in Monty's Galactic Days. He was captured by Professor Zim and sold to Old Star Wolf, who sold him to Jabba the Hutt. Monty met Knab in his prison cell when he was captured by Jabba as well. Knab wields a toaster attached to a gun that can shoot lasers. During the Invasion on Irk, Knab was decommissioned by Ava in the Tallests' decommissioner.