Actor. Son of Carlton Edward & Hazel (Green) Duff. Born in Charleston, Washington, he was a versatile performer of film, television, stage and radio. He began his career acting in stage productions in the late 1930s, until he entered the military during the Second World War where he was assigned to the Army Air Force’s radio service. After the war, he played Sam Spade in radio shows for ABC, CBS and NBC, from 1946 to 1950. He made his first film role as an inmate in “Brute Force” (1947), followed by “The Naked City” (1948). His other film credits include “Calamity Jane and Sam Bass” (1949), “Panic in the City” (1968), “In Search of America” (1971), “Kramer vs. Kramer” (1979) and “No Way Out” (1987). For television, he appeared on “Mr. Adams and Eve”, “Bonanza”, “The Twilight Zone”, “Felony Squad”, “Knott’s Landing” and “Dallas”. He was also married to actress Ida Lupino from 1951 to 1973. He died of a heart attack, in Santa Barbara, California, at age 76. (bio by: John “J-Cat” Griffith)  Family links:  Spouse:  Ida Lupino (1918 – 1995)Cause of death: heart attack