Rina's Brother

Codenamed F-501 in the manga. In his original incarnation, he is Rina's older brother and also came from the 23rd century. Due to the loss of his prosthetic arm and risking their identities being discovered, the Future Police assassinated him with a ray gun, erasing him entirely from existence.

In the 1968 anime series, a similar character appears as Rina's boyfriend "Jack" and meets a similar fate to his manga self.

In the 2001 series, a "Nichol" character recycles the brother's design (but has no lost limbs) and is murdered by his rogue teammate Cain's psychic powers. He is voiced by Tomoya Kawai.

(Source: Cyborg 009 Wiki)