Born Mary Jeanette Robison. She was the youngest daughter of Henry Robison of Penrith, Cumberland, England and Julia Schelesinger of Liverpool, Lancashire, England. Her father died in 1860 and her mother remarried. In 1866/67 they were living in St Kilda, Melbourne, Victoria, Australia and moved back to London, England in 1871. She ran away from home to marry Charles Leveson Gore in 1875 and in 1877 the young couple went to Fort Worth, Texas, USA to establish a cattle ranch. They survived for two years before moving to New York where her husband died about 1881.
Discovered on Broadway by director Howard Hawks, La Rue was originally brought to Hollywood to play a gangster in Scarface (1932). He lost that role to George Raft, and similarly was replaced by Humphrey Bogart in the film version of The Petrified Forest (1936). Eventually, he became well-known to movie-goers as a mean, sexy gangster type in sadistic roles like Miriam Hopkins' abductor in The Story of Temple Drake (1933). Film audiences, who loved to loathe him on-screen, were occasionally surprised by his being cast against type in such movies as A Farewell to Arms (1932). His final film was in the low-budget film Paesano: A Voice in the Night (1977).
Leonid Kinskey, originally from St. Petersburg, Russia, performed across Europe and much of Latin America before his arrival in the United States. By 1932 he landed a small role as a radical in Ernst Lubitsch's comedy, Trouble in Paradise (1932). The next year he played an agitator in Duck Soup (1933). He went on to play small parts, nearly always foreigners and often comedic, in over sixty films, including Genflou in Les Misérables (1935), the snake charmer in the well-known scene from The Lives of a Bengal Lancer (1935), an Arab in The Garden of Allah (1936), Ivan in The Big Broadcast of 1938 (1938), and Pierre in That Night in Rio (1941). His final film role was Dominiwski in The Man with the Golden Arm (1955). Kinskey's most famous role was as Sascha, the humorous bartender at Rick's Cafe Americaine, in Casablanca (1942). The part had originally been given to Leon Mostovoy; Kinskey replaced him because (1) he was funnier than Mostovoy, and (2) by his own testimony, he was a drinking buddy of the star Humphrey Bogart. His contract guaranteed him two weeks at $750 a week. He died on 8 September 1998, in Fountain Hills, Arizona, aged 95.