George Alexander Coulouris (1 October 1903 – 25 April 1989) was an English film and stage actor. A major impact on his life was Orson Welles, whom he met in 1936 when they both had roles in the Broadway production of Sidney Kingsley's Ten Million Ghosts. Welles invited Coulouris to become a charter member of his Mercury Theatre, and in 1937 Coulouris performed the role of Mark Antony in the company's debut production, Caesar, an innovative modern-dress production of Shakespeare's Julius Caesar.