Peter Daniel Ploszek is an American actor best known for his role as Leonardo in the Teenage Mutant Ninja Turtles films. He is also known for his role as Garrett Douglas on the MTV supernatural drama series Teen Wolf.
The Flash (Barry Allen) and the Beast chase the latter’s alternate universe counterpart, the Dark Beast, back to his home universe, a nightmare where various evil factions fight for control and several bits of what remains are authoritarian.
