Origin
Dead End has lost his mind and whatever is left is twisted beyond recovery. He is a mad-bot in an state of terror. Dead End lives within the depths of the colossal Unicron. The Chaos-Bringer uses him as a template for the hundreds non-sentient Dead End Drones that serve as part of Unicron’s immune system.
Major Story Arcs
Dreamweave Productions Continuity
Transformers: Energon
Dead End or his Cloned drones can be seen inside the core of Unicron.
Other Media
Television
Transformers: Armada (2002)
Pod drones can be seen in two different episodes. These have been stated to be clones of the original Dead End.
Video Games
Transformers (PS2)
A massive Dead End can be seen on one hemisphere of Unicron’s planetary mode.