Creeper

Golden Age Origin
The Creeper was a Nazi saboteur who under the guise as a green costumed attraction at the circus would travel from town to town sabotaging America's defenses including blowing up a U.S. battleship. However while successful at first, Steel Sterling put an end to his plan after discovering it.

Powers and Abilities
The Creeper had the unusual ability to stick to walls, even those made of surfaces as smooth as glass. This enabled him to scale buildings with ease. He was a very stealthy assassin, and a capable fighter, who carried a dagger on missions.

Golden Age Appearances

 * Zip Comics #31