Duggan portrayed the patriarch in a 1968–1970 series called Lancer, in which he played cattle baron Murdoch Lancer, while James Stacy portrayed Lancer's gunfighter son, Johnny Madrid, son of Maria, Murdoch's second wife. Some six years earlier, Stacy and Duggan had appeared together, along with Joan Caulfield, in the series finale, "Showdown at Oxbend", a classic drama of the fight between cattlemen and sheepherders, on the ABC/WB western series, Cheyenne, with Clint Walker in the title role.