American actor who played the 22nd-century Klingon captain Duras, son of Toral, who is disgraced by Archer and hunts him in the Star Trek: Enterprise episodes Judgment, Bounty and The Expanse.
Daniel Riordan is an American actor and voice performer whose Star Trek work goes back to the first season of The Next Generation, in which he played the Zaldan cadet candidate Rondon in Coming of Age.
On Star Trek: Enterprise he plays Duras, a Klingon captain and an ancestor of the troublesome house seen in the 24th century. In Judgment his testimony describes how Archer protected a shipload of refugees and crippled his battle cruiser.
Stripped of command, Duras seeks to restore his honour by recapturing the human. He pursues Enterprise in Bounty and again in The Expanse, where he follows the ship to the edge of the Delphic Expanse and is destroyed with his vessel.