O.D was born and raised on a distant planet between a native and an Earth human. O.D gained his NOTE through some unknown event. One day, Berg Katse appeared and had the people of O.D's planet turn on each other. O.D found Katse and fought him in his Gatchaman form and while he managed to damage Katse, he ended up destroying his home planet. Katse had thought that O.D was dead when he really just went to Earth.
He is a pale man with purple hair. He always wears a purple top with tight jeans, he also wears black high heels.
He has red eyes with yellow lipstick and nail varnish
He has a happy personality but when he is on his own he shows his grim side always wondering what he should say when he dies
The mood-making man of the Tachikawa "CAGE" with the catchphrase of "You're overdoing it-!!" He calls himself "a sad Gatchaman that can't transform," and because of this he does not go on normal missions. With his guardian-like existence to the team, people who might not open up their hearts to others would open it up to him. He owns a cat named Altair (Al for short).In episode 8, it is revealed that he is half human.
Not much is known about his past except that Berg Katse destroyed his planet and that he was once defeated in a fight with Berg.
Early in the series, OD stated that he was a "sad Gatchaman who can't transform", this is because Paiman stated they cannot be used because its immense powers would be highly destructive, annihilating the Earth and ultimately ending everything if he used it.
He possesses a green colored NOTE. During Episode 12 he finally unveils his G-suit and proclaimed that he will make Berg Katse disappear with "these arrows of annihilation" which are long beams of light that come out of his wings. He proved to extremely powerful as he destroyed more than half of Berg's body with just two attacks. Berg Katse also reveals that during their fight that OD was responsible for the destruction of his home planet when he fought against him in the past.