Shadow Knight (Kikaider 01)

Shadow Knight is a cycloptic, knight-themed cyborg working for the SHADOW organization and a major antagonist in the Tokusatsu series Kikaider 01.

History
Shadow Knight first appeared to abduct Akira, leading to a three-way battle between him, Ichiro and Jiro, and the Hakaider Squad, who also sought to kidnap Akira so they could use him for their own evil ends.

After the Hakaider Squad was destroyed, their leader Gill-Hakaider was forcibly enlisted into SHADOW as one of their agents. A rivalry soon developed between Gill-Hakaider and Shadow Knight, with neither one allowing the other to have the glory of defeating 01.

After Uchiyama Katsura was abducted by SHADOW, Shadow Knight attempted to use her to lure Kikaider 01 into a trap, leading to a confrontation between the two that saw the end of Shadow Knight.