Morgan Paull, the actor best known for his role as the blade runner whom Harrison Ford’s character replaces in the seminal science-fiction film of that name, died Tuesday in Ashland, Ore., after having been diagnosed with stomach cancer. He was 67.The actor was also a candidate for president of the Screen Actors Guild in 1981, though he came in third, with Ed Asner winning the post. Paull appears in the opening scene of Ridley Scott’s 1982 film “Blade Runner,” where as a detective he is interviewing a job applicant to make sure he is not a replicant, or genetically engineered human. Paull had supporting roles in several other high-profile films, including “Patton,” John Wayne starrer “Cahill U.S. Marshal,” “The Swarm” and “Norma Rae,” but he worked more often in television. The actor made his debut in an episode of “The Patty Duke Show” in 1965 and later guested in series including “Ironside,” “Emergency!,” “Gunsmoke,” “Chico and the Man,” “Quincy, M.E.” and “The Fall Guy.” Paull is survived by longtime companion Jenny Elam; two daughters; two sisters; a granddaughter and grandson; and his stepmother.