(All American Comics 021, 1940)
An old man who lives in a cave outside of Calvin City, the Emperor of America takes a bunch of Al "the Atom" Pratt's classmates prisoner as potential mind-controlled minions. Honestly, if it weren't for the fact that he already has a cadre of identical huge men in his employ he might be more believable as a delusional hermit than a credible threat - and since he never actually gets to demonstrate his mind control techniques before dying in a cave-in, the jury is and will always be still out. He's the Atom's first super-villainous opponent, though, so we'll allow it.
