Martin Sensmeier is an American actor. He began his career in 2014, debuting in a short film. Later in 2016, he starred the role of Red Harvest in the film The Magnificent Seven. He also appeared in the movie Wind River before landing the recurring role of Wanahton in Westworld. In 2018, he had performances in the films Beyond the Sky and Spare Room. After this, the actor played the recurring character of Martin in the second season of Yellowstone. This year, he guest-starred in one episode of FBI: Most Wanted. He has roles in the upcoming films The Ice Road and The Chickasaw Rancher.