William Campbell

William Campbell (October 30, 1923–April 28, 2011) was an American actor who appeared in supporting roles in major film productions, and also starred in several low-budget B-movies and horror films.

Campbell has also obtained cult status for his guest starring roles on Star Trek, appearing first as the mischievous super-being Trelane, in an episode of the original series called "The Squire of Gothos". Campbell also appeared twice as the Klingon Captain Koloth. Campbell first played Koloth on the original Star Trek series in the classic episode "The Trouble With Tribbles." He reprised the role on the series Star Trek: Deep Space Nine episode entitled "Blood Oath", some thirty years later. Campbell appeared at several Trek conventions in the 1980s and 1990s, and many Star Trek fans consider Campbell's portrayal of the Trelane character as the first introduction of the "Q culture" to the series.

from: Wikipedia