Orson Welles and Charles Laughton performing quarrel scene from Julius Caesar

The Mercury Theatre was an independent repertory theatre company founded in New York City in 1937 by Orson Welles and producer John Houseman. The company produced theatrical presentations, radio programs and motion pictures.

In addition to Welles, the Mercury players included Ray Collins, Joseph Cotten, George Coulouris, Martin Gabel, Norman Lloyd, Agnes Moorehead, Paul Stewart, and Everett Sloane.