Dmitrious Bistrevsky is a Ukrainian-American actor and circus artist who portrayed a Quarren trawler in the debut episode of the Disney+ live-action TV series The Mandalorian. He also served as one of three actors playing Darth Vader in the live-action series Obi-Wan Kenobi, with Bistrevsky, credited as “Performance artist – Darth Vader” doubling for Hayden Christensen in full body shots where Vader is wearing his helmet; and stunt double Tom O’Connell doing the fight scenes.