The Chosen One (link unavailable)

Finally, Jewish comic book fans have a hero all their own. The latest issue of 'The Fantastic Four' comic book reveals that the angry orange man of stone known as 'The Thing' is a child of Israel. When the 6-foot, 500-pound Marvel menace admits his Hebraic heritage, an arch-villain responds, 'You don't look Jewish,' reports the Forward. Created in 1961 by Stan 'Spider-Man' Lee and Jack Kirby, The Thing was born Benjamin Jacob Grimm on the Lower East Side.

Okay, I'll grant them that The Thing is the the biggest superhero to be declared Jewish. The first? Uh-huh.

The Atom Smasher (formerly Nuklon) once passed up a chance to marry Fire because she wasn't Jewish and he was intent on marrying "within his faith." Rothstein, Adam Smasher, was a member of Infinity Inc. and is presently a member of the Justice Society of America (a collection of Golden Age heroes and those who took up the mantle of Golden Agers). He's presently a regular in the JSA comic book being put out by DC.

That's not the biggie, though. There is not only a character who is conspicuously Jewish, but he took the mantle of the "Protector of Jews" from his father and grandfather (who fought in Europe during Hitler's regime). His mentor is even a rabbi! I speak, of course, of Ragman! While Rory Regan, the man behind the rags, is generally secular, his mentor is a rabbi and Jewish history does run through the character. He even has one of the coolest powers (that a certain Spiderman villain later became known for) I've ever seen. Ragman appears occasionally in Batman comics. There was a RAGMAN mini-series in the late eighties or early nineties that ran eight issues that I hardily recommend. There was another miniseries in the mid-90's (RAGMAN: CRY OF THE DEAD, if I recall) that I never got ahold of.

(Found via Protein Wisdom)