JLA No. 153 had another Earth-Prime hero named Ultraa.
Was he a multi-alien?
No, it's actually crazier than that, believe it or not.
Ultraa was a red-haired Superman-like alien that crashed landed on Earth in Australia, and he was raised by Australian Aborigines (!). During a battle with the Justice League, he migrated to Earth-1, where he hid his powers and got work as a janitor. Later, he moved back to Australia. He was a League opponent, but he was not truly evil, just naive and easily tricked.