Born on December 28, 1923, in Franklin, Indiana, this individual's life took a dramatic turn when he was raised in Texas, a significant departure from his birthplace. His academic pursuits led him to Indiana University, where he received a speech and drama scholarship, allowing him to explore his passion for acting and performance. However, his collegiate endeavors were put on hold when he was called to serve in World War II, where he witnessed intense action overseas and formed a lasting bond with actor Melvyn Douglas, who commanded his division. The influence of Douglas, combined with his exposure to the Broadway scene, ultimately led him to pursue a career in acting.
Following his military service, Duggan's acting career gained momentum, with appearances in both film and television beginning in 1953. One of his most notable roles was that of General Ed Britt in the 1964 series "12 O'Clock High," followed by his portrayal of Cal Calhoun in "Bourbon Street Beat" (1959). He also starred as Murdoch Lancer in the 1968 series "Lancer" and played the role of John Walton opposite Patricia Neal in the 1971 television special "The Homecoming: A Christmas Story." Furthermore, he is fondly remembered for his iconic role as "Howitzer Al Houlihan," the father of "Hotlips Houlihan" (Loretta Swit),in the 1972 series "M*A*S*H."
In his personal life, Duggan tied the knot with Broadway actress Elizabeth "Betty" Logue in 1954. After their passing, they were cremated and their ashes were scattered at Lake Arrowhead, California.