Mercutio - Kinsman to the Prince and Friend to Romeo
Edna May Oliver
Nurse to Juliet
Basil Rathbone
Tybalt - Nephew to Lady Capulet
C. Aubrey Smith
Lord Capulet
Andy Devine
Peter - Servant to Juliet's Nurse
Conway Tearle
Escalus - Prince of Verona
Ralph Forbes
Paris - Young Nobleman Kinsman to the Prince
Henry Kolker
Friar Laurence
Robert Warwick
Lord Montague
Virginia Hammond
Lady Montague - Wife to Montague
Reginald Denny
Benvolio - Nephew to Montgue and Friend to Romeo
Violet Kemble Cooper
Lady Capulet - Wife to Capulet
Charles Bancroft
Nobleman (uncredited)
Dean Benton
Minor Secondary Role (uncredited)
Carlyle Blackwell Jr.
Tybalt's Page (uncredited)
John Bryan
Friar John
Lita Chevret
Minor Secondary Role (uncredited)
Wallis Clark
Town Watch (uncredited)
Katherine DeMille
Rosaline
Vernon Downing
Samson - Servant of the House of Capulet (uncredited)
Harold Entwistle
Nobleman (uncredited)
Fryda Gagne
Minor Secondary Role (uncredited)
Fred Graham
Capulet Guard-Escort (uncredited)
Dorothy Granger
Minor Secondary Role (uncredited)
Jeanne Hart
Minor Secondary Role (uncredited)
Anthony Kemble-Cooper
Gregory - Servant of the House of Capulet
Anthony Marsh
Mercutio's Page (uncredited)
Lon McCallister
Minor Secondary Role (uncredited)
Maurice Murphy
Balthasar
José Rubio
Nobleman (uncredited)
Frank Whitbeck
Trailer Announcer (voice) (uncredited)
Howard Wilson
Abraham - Servant of the House of Montague
Ian Wolfe
Apothecary
Did you know?
Trivia
The role of Romeo was originally offered to John Gielgud, who had just had a triumph in a stage production of the play in London in which he alternated the roles of Romeo and Mercutio with Laurence Olivier. Gielgud not only turned the part down (thinking that Shakespeare couldn't effectively be presented on screen), but was so disgusted by the finished film that he walked out of the theater after watching only fifteen minutes of it.
George Cukor was Irving Thalberg's choice of director from the outset, mainly for his ability to elicit strong performances from his actresses. Above all else, Thalberg wanted the film to be a showcase for his wife, Norma Shearer.