Episode Detail: The Sons of Mogh - Star Trek: Deep Space Nine
Worf's brother Kurn (Tony Todd), dishonored and cast out of Klingon society, arrives on DS9 requesting Worf's help in committing ritual suicide. Noggra: Robert Doqui. Worf: Michael Dorn. Odo: Rene Auberjonois. Sisko: Avery Brooks. Dax: Terry Farrell.