Smith's (Robert Blake) father in "In Cold Blood" (1967). Leading man McGraw was finally given a leading role in RKO's Armored Car Robbery (1950) directed by Richard Fleischer. He played a gangster in His Kind of Woman (1951), then had the lead in Roadblock (1951) as "Honest Joe," the insurance investigator turned thief by love. Fleischer used McGraw in the lead of The Narrow Margin (1952). He was a sergeant in One Minute to Zero (1952) and War Paint (1953) and was a villain in Thunder Over the Plains (1954). McGraw's other notable roles were as Kirk Douglas's gladiator trainer in the epic Spartacus (1960) and as "The Preacher" in the science fiction film A Boy and His Dog. Television After appearing in radio, including the 03/13/1949 episode "Rubin Callaway's Pictures" of the noir-ish detective radio program "Pat Novak for Hire", McGraw moved to television. In the 1954-1955 television season, McGraw starred as the character Mike Waring in the 39-episode syndicated series Adventures of the Falcon. The series updated the original Falcon premise to portray Waring as a secret agent in the Cold War. He also starred in the first television version of Casablanca (1955), taking Humphrey Bogart's role as Rick Blaine. Additionally, he had the role of Captain Hughes in The Smith Family. In 1963, McGraw played Dr. Simon Oliver in the pilot of Diagnosis: Danger, a medical drama. He later had various single-appearance roles in television episodes such as the gruff and menacing Sheriff Gains in "The Gamble," an installment of the NBC western series Bonanza. In 1964, he guest starred on Gunsmoke as “Albert Calvin”; a rich farm owner who lets jealousy ruin his life and drives him to murder in “Bently” (S9E28). He is suspected of this crime by “Chester Goode” (Dennis Weaver) in Weaver’s final role on the series. In 1960, McGraw played United States Army scout Tom Barrows in the episode "The Scout" on the ABC/Desilu Western television series The Life and Legend of Wyatt Earp starring Hugh O'Brian. Though he has an Apache wife, Barrows is known for his attacks on Apache warriors. He is called "The Listener" because he cuts off and wears the ears of the Indians he has killed. The Indians retaliate by killing Barrows's wife. McGraw also appeared in an episode of The Untouchables titled "The Jake Lingle Killing." This was notable as a pre-Hawaii Five-O Jack Lord was