Steelheart and Steelwill, two of the SilverHawks, are fraternal twins. They share a bond of empathy; when one sibling feels something, the other feels it as well.
The theme song defines the SilverHawks as being "partly metal, partly real". They are actually cyborgs, humans (and a humanoid alien) with mechanical body parts.
The Copper Kidd is the only member of the SilverHawks who is not from planet Earth. He is reportedly an alien from the Planet of the Mimes. He does not really speak and communicates with mathematically calculated tones and whistles.
A comic relief character featured in the series was Seymour, a space cab driver. He was possibly inspired by the "Space Cabbie", a minor "DC Comics" series from the 1950s. Its star character was a space cab driver.
The frequently seen outlaw bar on the planet Fence has a sign prominently posted that says "No Alchohol". This was an example of the typical censorship in American cartoons of that era prohibiting the depiction of smoking or drinking.