The Super-Soldier Serum is one of Marvel Comics’ most ingenious ideas with everyone from Captain America to Man-Thing having some history with the formidable formula. Over the years, many have tried to replicate this vaunted serum with results that range from inspiring to horrifying and everywhere in between.

And while turning scrawny Steve Rogers into the Sentinel of Liberty was one of the more notable applications of this serum, Captain America is far from the only Super-Soldier success story.

Codename: Bravo/"Richard" Created by Ed Brubaker & Steve McNiven

An ally turned enemy of Captain America himself, the enhanced operator known as Codename: Bravo was an old wartime ally of Rogers, along with Nick Fury and Peggy Carter, until a failed mission left him stranded in another dimension. While the results of his own Super-Soldier Serum variant don’t quite put him at Rogers’ level, he’s still twice as strong,...