Captain Shazam

Origin
"Captain Shazam" was a title promised by Lightning Comics, however the company folded before it ever saw print. Given that Lightning Comics was founded by C. C. Beck & Otto Binder, the creators of Captain Marvel (who famously shouts "Shazam!" as a battle cry), the comparisons between the two can be more than assumed. However, with the title not making it to print, no one will ever know for certain.