Leonard Whiting as Romeo

Olivia Hussey as Juliet

John McEnery as Mercutio

Michael York as Tybalt

Milo O’Shea as Friar Laurence

Pat Heywood as the Nurse

Robert Stephens as the Prince

Bruce Robinson as Benvolio

Paul Hardwick as Lord Capulet

Natasha Parry as Lady Capulet

Antonio Pierfederici as Lord Montague

Esmeralda Ruspoli as Lady Montague

Roberto Bisacco as Lord Paris

Roy Holder as Peter

Keith Skinner as Balthazar

Dyson Lovell as Sampson

Richard Warwick as Gregory

Roberto Antonelli as Abraham

Carlo Palmucci as Complementary Role (uncredited)

Salvatore Billa as Complementary Role (uncredited)

Claudio De Davide as Complementary Role (uncredited)

Paola Tedesco as Complementary Role (uncredited)

Laurence Olivier as Narrator (voice) (uncredited)

Antonio Marcolini as Capulet Party Guest (uncredited)

Andrés José Cruz Soublette as Complementary role (uncredited)