Gowron is a fictional character in the Star Trek universe. He was played by Robert O'Reilly and featured in the television series Star Trek: The Next Generation and Star Trek: Deep Space Nine. His defining characteristics are his challenging large eyes and his distinctive voice.
Gowron (Klingon - ghawran) first appears in the episode "Reunion" as the main rival of Duras for the succession of the post of Klingon Chancellor K'mpec, who suspects that one of the two had been poisoning him and appoints Captain Jean-Luc Picard as "Arbiter of Succession" to determine who will follow him. Before the arbitration process can be resolved, however, Worf's one-time mate, K'Ehleyr, discovers the evidence that implicates Ja'rod (the father of Duras) in the Romulan attack on the Klingon outpost Khitomer, and to prevent her from disclosing it, Duras murders her. Claiming right of vengeance, Worf challenges Duras to a duel, and kills him, resulting in Gowron's ascension to the Chancellorship.
Gowron reappears in the episode "Redemption", with his position now under threat from the Duras sisters who are driving for Duras's illegitimate son Toral to be appointed Chancellor. It is revealed that the Duras clan has been in league with the Klingon's traditional enemies the Romulan, and their attempt to seize power ends when the Romulans abandon them. Gowron also restores the honor of Worf's house during this episode's events.
Gowron is once more challenged in the episode "Rightful Heir" by the apparently resurrected Kahless the Unforgettable. It is ultimately revealed that this Kahless was in fact a clone, whom Gowron appoints to the symbolic post of Emperor of the Klingon Empire.
Read more about Chancellor Gowron at Wikipedia ...
Official Site: Paramount
Links: Wikipedia Memory Alpha Star Trek.com