Fil-El was a native of the planet, Krypton. Not only was he a respected member of the noble House of El, he was also a qualified surgeon who pioneered new radical medical techniques, saving countless Kryptonian lives. He was the son of Nox-El and the father of famed agriculturalist, Sorn-El. His family line continued for generations ultimately producing Krypton's last male heir, the super-hero known as Superman.