Duncan Idaho is a character in the 2021 film Dune. He is a swordmaster in service of Duke Leto of House Atreides, and he trains the Duke's son Paul. Duncan Idaho is portrayed by Jason Momoa.
Differences from the original character
Duncan Idaho is adapted from the character of the same name from the original Dune novel.
Duncan Idaho and the Sardaukar
Dune 2021 - Atreides Sword