An undercover officer and contact who warns Leonard about Natalie. He reveals that Jimmy was actually John G, confesses to helping Leonard kill the real attacker a year ago, and admits to manipulating Leonard for his own purposes.
Teddy acts as Leonard's primary informant and ally, though their partnership is built on mutual manipulation.
Teddy identifies Jimmy as the criminal John G during his undercover work and uses Leonard to eliminate him.
Explore the full interactive character relationship map of Memento