Trivia: British actor John Williams is noted for his suave, perfectly-mannered characters. He is best remembered for his portrayal as Inspector Hubbard on the stage, screen and television versions of Dial M for Murder. Born in Chalfon St. Giles, England, Williams began his career on the stage at 13. By the age of 21, he was playing leads and sophisticated characters in Broadway plays. Beginning in the mid '30s, he began appearing in British films. By the '40s he was playing in Hollywood productions; he continued in film until the late '70s.

Trivia: Lightweight leading man Ross Ford joined the Warner Bros. contract stable in 1943. Ford briefly moved from Warners to Columbia before setting his sights on TV work. He was starred in the feature-length pilot for Project Moonbase (1951), which was diverted to theatres when a series failed to materialize; he then spent three years as Eleana Verdugo's boyfriend on the popular sitcom Meet Millie. Ross Ford continued accepting character parts into the mid-1970s.

Trivia: A stage actress of long standing in her native England, aristocratic leading lady Isobel Elsom made her first Broadway appearance in 1926. Her biggest stage hit was in the role of the wealthy murder victim in 1939's Ladies in Retirement, a role she repeated (after a two-year, nonstop theatrical run) in the 1941 film version. Nearly always cast as a stately lady of fine breeding, Elsom played everything from Gary Cooper's soon-to-be mother-in-law in Casanova Brown (1946) to a movie studio executive in Jerry Lewis' The Errand Boy (1962). She was also seen as Mrs. Eynesford-Hill in the 1964 movie adaptation of My Fair Lady. At one time married to director Maurice Elvey, Isobel Elsom was sometimes billed under the last name of another husband, appearing as Isobel Harbold.

Trivia: Welsh-born actor Gerald Hamer was one of a legion of British actors working in Hollywood in the 1930s and 1940s. A character player who could melt into any part he portrayed, he might be totally forgotten today except that he has the distinction of playing one of the most sinister roles in any of the Basil Rathbone/Nigel Bruce Sherlock Holmes movies, the part of Potts/Tanner/Ramsden in The Scarlet Claw. A true psychopath, with none of the suave villainy of, say, George Zucco or Henry Daniell in their portrayals of Holmes' antagonists, Potts is memorably crafty and savage in a series that usually prided itself on glib-tongued villainy. It's also a tribute to Hamer's skills as an actor that the producers saw no reason not to use him in roles in four other films in the series, as John Grayson/Alfred Pettibone in Sherlock Holmes in Washington, Kingston in Pursuit to Algiers, Major Langford in Sherlock Holmes Faces Death, and Mr. Shallcross in Terror By Night, the latter two after The Scarlet Claw. A British stage veteran from 1916, whose theatrical credits included King Henry VIII, The Taming of the Shrew, and The Admirable Chrichton, Hamer worked in Hollywood from the mid-'30s until 1951, his other thrillers include Bulldog Drummond's Bride and The Lodger, but he also slipped into more benign settings, such as the cast-of-hundreds war relief effort Forever and a Day and George Stevens' Swing Time, equally well.

Trivia: American actress Theresa Harris made her screen debut as one of the sullen "camp followers" in Josef von Sternberg's Morocco. Like most black performers working in Hollywood during the 1930s and 1940s, Harris was generally limited to servant roles. One of the more artistically rewarding of these was Josephine, the object of Eddie "Rochester" Anderson's affections in the Jack Benny vehicle Buck Benny Rides Again (1940). Harries and Anderson worked so well together that they were reteamed in the same roles in another Benny comedy, Love Thy Neighbor (1940). Evidently a favorite of RKO producer Val Lewton, Harris was prominently cast in several of Lewton's productions of the 1940s, most entertainingly as the cheerfully sarcastic waitress in Cat People (1943). Theresa Harris remained in films until 1958, her characters slowly moving up the social ladder to include nurses and governesses.

Trivia: Though he frequently adopted a British accent, actor Gavin Muir was a Chicago boy. After stage work, Muir went to Hollywood for Mary of Scotland (1936), then spent the next quarter century menacing various stars as sly, slow-speaking villains. His indeterminate nationality made him useful in war films like The Master Race (1945), while his tendency to look as though he was hiding some awful secret enabled him to shine in such melodramas as Nightmare (1942). A more benign but still not altogether above-board Muir appeared in the role of a scientist coerced into inflicting invisibility upon Arthur Franz in Abbott and Costello Meet the Invisible Man (1951). As late as 1959, Muir was throwing roadblocks in the way of sweetness 'n' light as a snooty butler on TV's The Betty Hutton Show. Gavin Muir's last film before slipping into retirement was Night Tide (1963), an appropriately glum ghost story.

Trivia: Supporting actress Irene Tedrow spent most of her 60-year career on stage, but she also had considerable experience in feature films and on television. Slender and possessing an austere beauty, Tedrow was well suited for the rather prim and moral characters she most often played. After establishing herself on stage in the early '30s, she made her film debut in 1937. She gained fame during the 1940s playing Mrs. Janet Archer in the Meet Corliss Archer film series. She kept the role in the subsequent television series. She played Mrs. Elkins on Dennis the Menace between 1959 and 1963. In 1976, Tedrow earned an Emmy for her performance in Eleanor and Franklin.