Kotaro Minami/Kamen Rider Black/Kamen Rider Black RX

Kohtaro Minami (南 光太郎  Minami Kōtarō )  is the main protagonist of both Kamen Rider Black and Kamen Rider Black RX. Starting with Kamen Rider Decade and continuing onto most of the later crossover movies, there are two Kohtaro Minamis who are independently Black and RX.