I think the character you’re thinking of was in “Lil Abner?”
The Joe with the unpronounceable last name was an enemy of Superman, I think!
We’re both half right!
From Wiki;
“Joe Btfsplk was a character in the satirical comic strip Li’l Abner by cartoonist Al Capp (1909–1979). He is well-meaning, but is the world’s worst jinx, bringing disastrous misfortune to everyone around him. A small, dark rain cloud perpetually hovers over his head to symbolize his bad luck. Hapless Btfsplk and his ever-present cloud became one of the most iconic images in Li’l Abner.[1]”