Person

John Schuck

Actor (Klingon ambassador) — Star Trek films

American actor, born in 1940, who played the Klingon ambassador in Star Trek IV and Star Trek VI and later took guest roles in Deep Space Nine, Voyager and Enterprise.

John Schuck is an American actor, born in 1940, known for the film MASH and for the television series McMillan and Wife.
In Star Trek IV: The Voyage Home (1986) he plays the Klingon ambassador who demands Kirk's extradition before the Federation Council, declaring that there will be no peace while Kirk lives. He returned to the part in Star Trek VI: The Undiscovered Country (1991), speaking for the Empire after the assassination of Chancellor Gorkon.
Schuck went on to play the Cardassian Legate Parn in the Deep Space Nine episode The Maquis, Part II, a member of the chorus in the Voyager episode Muse, and the Klingon doctor Antaak in the Enterprise episodes Affliction and Divergence.