Kipsang Rotich, a student from Kenya, provided the voice of Nien Nunb in Star Wars: Episode VI Return of the Jedi, Star Wars: Episode VII The Force Awakens, and Star Wars: Episode IX The Rise of Skywalker. He also provided Nien's voice for the Rise Of The Resistance ride at Star Wars: Galaxy's Edge.
When Rotich provided the voice for Nien Nunb in Return of the Jedi, he was a student on work experience that happened to be on set whilst director of the film, Richard Marquand, was looking for someone to record lines for Nien Nunb.
Rotich reprised his role 30 years later in The Force Awakens, and then again in The Rise of Skywalker. He did not play Nien in the second instalment of the sequel trilogy, The Last Jedi, as his character, Nien Nunb, does not have any lines of dialogue in that film. Later in 2019, he provided the voice for Star Wars: Galaxy's Edge ride, Rise of the Resistance.