Frank Berkowitz

Biography
Frank Berkowitz was the mayor of Metropolis. He was serving in this capacity in the years when Superman first came to Metropolis. After Lex Luthor engaged in various acts of reckless endangerment of the citizens of Metropolis, Berkowitz appointed Superman as a special deputy and had him arrest Luthor. Luthor never quite got over this effrontery and has been a pain in Superman's ass ever since.