Dellso Prin was a Cingulon who made his living as both a seller of previously owned starships and a mechanic. During the war between the First Order and the Resistance, he maintained loose ties to the latter. After the Resistance established a base on the moon of Ajan Kloss, Prin's role involved transporting cargo and essential supplies to support their operations. The allure of collaborating with the Resistance, with the opportunity to service iconic vessels like the Tantive IV and the Millennium Falcon, motivated Prin's involvement.
In the year 35 ABY, Prin's presence was noted at the Resistance base during the return of Rey, a Jedi undergoing training, from a training exercise conducted in the nearby jungle. While Rey engaged in conversation with General Leia Organa, Prin could be seen near the entry ramp of the Tantive IV, occupied with a datapad while conversing with a fellow member of the Resistance. He had white skin that was pebbly in texture, along with black eyes, and he was clad in a green flight suit paired with a yellow jacket featuring two white plates on its front. His attire was completed with brown harnesses and a white helmet.
Dellso Prin's initial appearance occurred in the 2019 Star Wars movie, Star Wars: Episode IX The Rise of Skywalker. His identity was first revealed in Star Wars: The Rise of Skywalker: The Visual Dictionary, a reference book written by Pablo Hidalgo. The character of Prin was portrayed by Nick Kellington, an actor who also took on the roles of Klaud and Amuncie Tidian within the same film.