Klingon

You may be looking for the language.

In a parallel universe, the Klingons were a species from the planet Qo'noS who were the leaders of the Klingon Empire. During the 24th century, they were allied with the United Federation of Planets. One Klingon, Worf, was a Starfleet officer who served on the USS Enterprise in the 2360s. (COMIC: Assimilation²)

Biology

The Klingons were humanoids with ridged foreheads. (COMIC: Assimilation²)

The Klingons are one of the major races of the Star Trek universe. They have appeared many times in all seven television series and all but two of the films.
In the Top Gear "Master of the Universe" segment, a Klingon raced around the Top Gear track against a Dalek, a Cyberman and Colin Baker as the Sixth Doctor (as well as Darth Vader from Star Wars and Ming the Merciless from Flash Gordon).
In the Doctor Who television story The God Complex, a woman in Howie Spragg's room on the prison ship which held the Minotaur asks Howie how to say "loser" in the language "K-K-K-Klingon". Though The God Complex doesn't make a direct connection to the race, this is an obvious reference to the language spoken by the Klingons.