This Duncan Idah vinyl figure is released by Funko in their POP! Movies x Dune vinyl figure series.
Funko POP! is a crossover vinyl figure series by Funko and other famous franchises such as Disney, Pixar, DC Comics, Marvel Comics, Simpsons, South Park, Uglydoll, etc. Each POP! figure is about ~3" to ~5" tall and crafted in a Japanese anime/manga super-deformed style (NOTE: due to the unique design of each character, the actual size of the figures may be smaller or bigger than stated).
The POP! Movies x Dune features character from the 1984 science fiction film based on the novel of the same name. Set in the year 10191, a spice called melange is the most valuable substance known in the universe, and its only source is the desert planet Arrakis. A royal decree awards Arrakis to Duke Leto Atreides and ousts his bitter enemies, the Harkonnens. However, when the Harkonnens violently seize back their fiefdom, it is up to Paul, Leto's son, to lead the Fremen, the natives of Arrakis, in a battle for control of the planet and its spice.