Gowron

'''Gowron, son of M'Rel', is a fictional character who appeared in the American science fiction television series Star Trek: The Next Generation and Star Trek: Deep Space Nine''. Portrayed by Robert O'Reilly, he is the leader (Chancellor) of the Klingon Empire. O'Reilly had appeared earlier in The Next Generation as Scarface in the second season episode "Manhunt", and was cast as Gowron due to his comedic ability and his piercing and extremely unsettling gaze, or what O'Reilly himself humorously referred to as "that crazy loon eyeball thing".

Appearing first in "Reunion", where he is named Chancellor, Gowron defends his position against the challenge of the Duras family in the two-part episode "Redemption". Following the advice of Lt. Worf (Michael Dorn) in "Rightful Heir", he incorporates the clone of Kahless into the Klingon government without disrupting his own leadership. In Deep Space Nine, he initiates a conflict with the Federation over fears that the Cardassians have been infiltrated by the Founders. After Cardassia sides with the Dominion, he allies with Starfleet throughout the rest of the war. However, he later grows jealous of the success of General Martok (J. G. Hertzler) and undermines the war effort, resulting in Worf killing him in a duel.