He was a longtime rival of Big One and the pair have clashed at various times in the past. Iron Claw's ultimate fighting form was a full silver-bodied super cyborg, Warrior Iron Claw. He was defeated as such by the Big Bomber in the final battle of the series, but returned very much alive in JAKQ vs. Gorenger. There, he planned to bomb seven countries (the United States, the Soviet Union, the People's Republic of China, France, the United Kingdom, West Germany, and Japan) and go out into space until peace on Earth was settled--then, he would have become the King of the Solar System. The Gorengers and JAKQ crushed his plans when Big One gave Spade Ace a device which would set off a rocket claw Big One had switched with Iron Claw before transforming. The independent claw pressed the Detonate button and the City-Buster bombs destroyed the craft that Iron Claw was in, taking Iron Claw himself with it, and Big One now kept the real claw as a momento.
His name was derived from his right hand being a claw made of iron. While appearing human he was later revealed to be a cyborg much like his foes, JAKQ and Big One. His right hand was a powerful Iron Claw, which can fire talon-like missiles. It could also detach from Iron Claw's body to attack enemies independently.
When ©Na replaces the Super Sentai Series with her own Super ©Na Series, she takes Iron Claw's place as Crime Empress ©Na in her version of J.A.K.Q. Dengekitai.