Diesel 20 is a fan-made thomas the tank engine villain he is a evil British Rail Class 50 with 9 claws, 8 buzz saws, 7 chainsaws, a machine gun, and a rocket launcher. Considered the pinnacle of the numbered Diesels, Diesel 20 is very brutal to his victims.
- Broly (Dragon Ball Z)
- Nazo (Sonic the Hedgehog)
- Destoroyah or Bagan (Godzilla)