Adolf Hitler (Kamen Rider)

Adolf Hitler was the leader of the National Socialist and ruler of Nazi Germany during World War II. Following his demise, surviving Nazis would flee Germany and found an organization to avenge his death and take over the world.

Kamen Rider
Hitler was send to have buried a stash of gold in Japan during the World War II Axis Alliance. Dr. Heinrich, a former Nazi scientist who joined Shocker and Grimreaper Chameleon pursued a map that could lead them to the treasure only to discover the gold had already been unearthed.

Kamen Rider X
Hitler's likeness was used by the Government of Darkness to create Starfish Hitler, a starfish-themed G.O.D. Kaijin.