Alexander Luthor of Earth-3

The first superhero of the parallel world known as Earth-3.

Alexander Luthor teams up with Superman and Superman of Earth-2 to defeat the dreaded team of Lex Luthor, Alexei Luthor of Earth-2, and Ultraman of Earth-3 (DCCPA No. 1, 1982: "Crisis on Three Earths!").

Note: Alexander Luthor has a son, who is called Alexander Luthor, Jr. He later became a superhero as well, and wore a golden suit of armor during his very brief career.