The Dark Don

The mysterious Dark Don, revealed to be a not-so-dead Frankie the Fly, tells Vinnie Cannoli how he decided to help the Nazis during their rise to power in the 1930s, how he helped them in their war effort by providing them with wonderweapons research, and how he eventually plans to usurp Hitler once he takes over the world.

Example of:
Piggybacking on Hitler