Klingons

Klingons are an extraterrestrial humanoid race featured in the Star Trek film and television franchise. Known for their aggressive, warlike behavior, they have become one of the most popularly known alien races in all of science fiction. They were first introduced in the original Star Trek television series in the season one episode "Errand of Mercy". The Klingons were a conquering race who prided themselves on honor, strength and the glory of combot. They had established a vast Empire throughout numerous star system and their home world was a planet caleld Qo'noS.

Appearance
In the original Star Trek series, the Klingons were visually depicted with a dark, swarthy complexion, dark hair and pointed eyebrows, but were otherwise human in appearance. They appeared in seven episodes of the series in total and included characters such as Kor, Kras and Koloth. The Klingons also appeared in two episodes of Star Trek: The Animated Series, but were not seen again until the 1979 film Star Trek: The Motion Picture. Beginning with the first film, the visual representation of the Klingons altered dramatically. They were now portrayed with broad, cranial ridges, accentuated facial features and fangs. This look continued to evolve throught the various spin-off programs with no in-universe explanation to explain the discrepencies. It wasn't until the fifth Star Trek series, Star Trek: Enterprise that a solution was presented to explain why modern-era Klingons bore such a stark difference from Klingons in the original series.

Ships

 * Klingon Bird-of-Prey