Someone requested this a while back, so in the light of Hanukkah, here you go!
Spider-Man- In the comics, especially during the holiday specials, he would always wish people a “Happy Hanukkah”. Even some of the creators like to think he’s Jewish. Stan Lee even hinted that he was Jewish because he said he wanted to base Peter Parker on himself a lot, even mentioning his Jewish background. And, spoiler alert, Stan Lee grew up in a Jewish home! Some further proof is that the executive producer and director of Toby’s Spider-Man movies say that he is, Andrew Garfield and the writer of the amazing Spider-Man movies says that he is, and the Co-director og into the spider-verse says he is. Also, in into the spiderverse Peter B Parker crushes a glass at his wedding, so he is definitely Jewish too.
The flash- Barry Allen is Jewish, he even says it in the justice league. He describes himself as an “attractive Jewish boy”
Superman- Clark Kent is Jewish. Superman is also loosely based off of Moses, you can see this by the way he was sent off his planet by his parents and you can see it throughout the comics and movies. His birth name is Kal-El, which in Hebrew means “the voice of god” which I thought was cool. Even if Superman is an alien, Clark Lent is definitely Jewish.
Moon knight- In the comics Marc grew up in a strict Jewish household, his father was a rabbi. Apparently it shows this somewhere in the series, but I never finished it so I wouldn’t know.
Wanda and Pietro- in the comics, they are Jewish because their father is Magneto and he is Jewish. In the movies, it doesn’t clearly state that they are Jewish but it can be assumed that they are. This is because they were born near Romania and since we don’t have much information on their parents in the movies, we can assume that they are Jewish or of Jewish descent.
Magneto- he is only in the comics, but is rumored to appear soon. He is a mutant that controls magnetism. He was a holocaust surviver but doesn’t play much into his Jewish background after that. So we can assume that his human-version is Jewish. He focused more on protecting mutants though.
Harley Quinn- In the very first voicing of Harley Quinn, the voice actor made her have a strong New York accent, but said she added some “Yiddish sounds” to it. Maybe she isn’t in some of the modern versions, but she was at one point. And in the comics, Harley Quinn often returns to a Jewish and catholic family during the holidays, showing that she is half Jewish.
The Thing- in the comics, he had a bar mitzvah and practices at the synagogue. Some people think that he was loosely based off the golem, which could make sense because the golem was sculpted of clay and is a protector while the Thing is rock and a protector.
