Comedy-loving leading man Jon Hamm, better known as Don Draper, appeared on The Simpsons tonight, and more than made up for the more-than-a-decade-old plot reference to Donnie Brasco with his turn as an FBI bigwig.

Hamm reprised his role in The Town as jerky FBI agent to draw Homer into the role of informant.

Homer somehow does not screw up the job, and delivers Fat Tony to the Feds. Spoiler!: don't read this if you think that Simpsons spoilers are somehow relevant and important: Fat Tony is dead. Fat Tony is really dead? Really? Today is a sad day.