Garr Rindaz

Garr Rindaz sacrifices himself.

Garr Rindaz was an Atlantean Merman. Centuries ago, he sacrificed himself by suicide bombing a giant monster that was going to destroy Atlantis. A memorial of him was erected, but the memorial was covered up by a sunken Viking ship. In 1962, Supergirl visited and lifted the ship to find Isotope Element Z, and accidentally uncovered the memorial, leading Lori Lemaris and Jerro to thank her. ("The Death of Luthor!")