Answer: James Doohan
Not just James Doohan, known for his role as Montgomery Scotty, a sly fellow in his role as chief engineer of the Starship Enterprise but he was also a thoroughly smart gentleman. In the early years of the Star Trek universe, those of the Klingon people were portrayed as speaking English without a native language being discernible.
That changed with the shooting of Star Trek : The Movie . Doohan, not only a talented television actor, but also an accomplished speaker, created dialogues for the Klingons in the hard and guttural-sounding language fans who are now recognized by fans as Klingon. Doohan's efforts, however, were only the beginning of the fictional language.
When the third Star Trek film came out in 1