Showcase Presents: Superman — DC Comics
Issue: #2
The second Showcase spotlighting the Silver Age exploits of Superman has the Man of Steel facing off against a wide array of threats, from the impish Mr. Mxyzptlk to the deadly alien Brainiac to the utterly incomprehensible Bizarro.
Creators: Bill Finger, George Klein, Curt Swan, Wayne Boring, Otto Binder, Al Plastino, Jerry Coleman, Kurt Schaffenberger
Characters: Superman, Mr. Mxyzptlk, Brainiac, Bizarro