Trivia: A versatile, commanding, leathery character actor, he learned to raise and ride broncos on his family's ranch during his youth. He attended college for two years, became a seaman, then began his performing career as a radio announcer; he became nationally known as an announcer on the "March of Time" broadcasts. Onscreen from the late '40s, he often portrayed law officers; he was also convincing as a villain. He was well-known for his TV work; he starred in the series Naked City and Wagon Train. He was married to actress Jeanette Nolan, with whom he appeared in Saddle Tramp (1950) and Two Rode Together (1961); they also acted together on radio, and in the late '60s they joined the cast of the TV series The Virginian, portraying a married couple. Their son was actor Tim McIntire.

Trivia: Lead actor, onscreen from 1959.

Trivia: Television and movie actor John Larkin -- not to be confused with the identically named African-American actor who worked in movies during the 1930s, or with the similarly named screenwriter/producer-director of the 1930s, 1940s, and 1950s -- was an extremely busy radio actor at the start of his career. Born in Oakland, CA, in 1912, he rose to stardom in 1947 when he became the fourth (and last and longest-serving) actor to portray the role of Perry Mason in the radio series of that name. He played the part until the end of the series' run in 1955. At that point, he was cast in the role of District Attorney Mike Karr in The Edge of Night, a daytime television drama that was originally conceived as a Perry Mason spin-off. During this same period, he had already been very active on television; Larkin's strong delivery and vocal demeanor made him a natural as a narrator, and it was in that capacity that he came to the small screen at the start of the 1950s on Farewell to Yesterday. With the decline of radio, he primarily worked in television from the second half of the 1950s through the mid-1960s, including such series as The Detectives, Gunsmoke, Bonanza, The Untouchables, and The Fugitive, as well as Perry Mason. His casting in episodes of the latter created a situation that fans of the radio show appreciated for its ironic resonances. In at least one installment of Perry Mason, he was the defendant represented by television's Perry Mason, Raymond Burr. He was also the co-star of the Quinn Martin-produced series Twelve O'Clock High, as Major General Crowe, the direct superior officer to series protagonist Brigadier General Frank Savage (Robert Lansing), during the show's first season. Larkin didn't make his first feature film appearance until 1964, when John Frankenheimer cast him in Seven Days In May as Colonel Broderick, the antagonistic right-wing signal corps officer at the center of a conspiracy against the President of the United States. Although he was uncredited in the role, he had two memorable scenes with stars Kirk Douglas and Edmond O'Brien. He only ever got to work in two other movies, the Disney production of Those Calloways and John Sturges' The Satan Bug (both 1965); in the latter, he had one key scene. Larkin, who was known best for playing hard-nosed, authoritative types, died of a heart attack in early 1965 at the age of 52.

Trivia: A professional actor since his teens, Gene Evans made his first film appearance in 1947's Under Colorado Skies. Evans' gritty, no-nonsense approach to his craft attracted the attention of like-minded director Sam Fuller, who cast the actor in several of his 1950s film projects. Many consider Evans' portrayal as the grim, born-survivor sergeant in Fuller's The Steel Helmet (1951) to be not only the actor's best performance, but also one of the best-ever characterizations in any war film. Active in films until 1984, Gene Evans also co-starred in the TV series My Friend Flicka (1956), Matt Helm (1975) and Spencer's Pilots (1976).

Trivia: Though typecast as a dull-witted brute, Austrian-born Mike Mazurki was the holder of a Bachelor of Arts degree from Manhattan College. During the 1930s, he was a professional football and basketball player, as well as a heavyweight wrestler. His clock-stopping facial features enabled Mazurki to pick up bit and supporting roles in such films as The Shanghai Gesture (1941) and Dr.Renault's Secret (1943). Larger parts came his way after his indelible portrayal of psychotic brute Moose Malloy in 1944's Murder My Sweet. His trademarked slurred speech was reportedly the result of an injury to his Adam's apple, incurred during his wrestling days. While villainy was his bread and butter, Mazurki enjoyed working with comedians like Jerry Lewis and Lou Costello; he was particularly fond of the latter because the diminutive Costello treated him with dignity and respect, defending big Mike against people who treated the hulking actor like a big dumb lug. Mazurki's many TV appearances included a regular role on the short-lived 1971 sitcom The Chicago Teddy Bears. In 1976, Mike Mazurki was effectively cast as a kindly trapper in the family-oriented "four-waller" Challenge to Be Free, which ended up a cash cow for the veteran actor.

Trivia: Redheaded leading man Robert Horton attended UCLA, served in the Coast Guard during World War II, and acted in California-based stage productions before making his entree into films in 1951. Horton's television career started off on a high note in 1955, when he was cast in the weekly-TV version of King's Row as Drake McHugh (the role essayed by Ronald Reagan in the 1942 film version). The series barely lasted three months, but better things were on the horizon: in 1957, Horton was hired to play frontier scout Flint McCullough in Wagon Train, which became the highest-rated western on TV. Horton remained with Wagon Train until 1962. He then did some more stage work before embarking on his third series, 1965's The Man Called Shenandoah. When this one-season wonder ran its course, Horton toured the dinner-theatre circuit, then in 1982 accepted a major role on the popular daytime soap opera As the World Turns. Horton continued acting until the late 1980s. He died in 2016, at age 91.