Marc Okrand is the inventor of the Klingon language. He was hired by Paramount Pictures to invent the language and coach the actors on Star Trek III: The Search for Spock, Star Trek V: The Final Frontier and Star Trek VI: The Undiscovered Country.
Okrand previously worked with Native American languages, from which he borrowed the unusual Klingon tlh sound (common in North and Central American indigenous languages, in which it is usually transcribed as tl).
Recent work includes the Atlantian language[?] which he was hired to do for Disney's film Atlantis, the Lost Empire[?].
