Terrib Igmusk was a Keteerian who worked as a hotel concierge for the Canto Casino and Racetrack in the city of Canto Bight on the planet Cantonica. During the war between the First Order and the Resistance in 34 ABY, Igmusk was lurking inside the casino and at one point stood with the alien Glowen Faquidde.
The Keteerian was speaking with a human near one of the casino's gambling tables when the Resistance agent Finn searched for the casino patron known as the Master Codebreaker. Igmusk was still in the casino when Finn and his partner Rose Tico rode a herd of fathiers, which they had liberated from the racetrack, through one of the building's windows. Igmusk fled from the animals as they trampled through the building.
Terrib Igmusk first appeared in the 2017 sequel trilogy film, Star Wars: Episode VIII The Last Jedi, in which he was portrayed by Keith De'Winter. For the film, Igmusk's creature design was titled "K020." The character was first identified in the 2019 episode guide for "Dangerous Business," an episode of the television series Star Wars Resistance. In the "Bucket's List Extra" section of the episode guide, Terrib was misspelled as "Teerib."