Glenn Ford as Dr. Thomas King

Eleanor Parker as Marjorie Lawrence

Roger Moore as Cyril Lawrence

Cecil Kellaway as Bill Lawrence

Peter Leeds as Dr. Ed Ryson

Evelyn Ellis as Clara

Walter Baldwin as Jim Owens

Ann Codee as Mme. Gilly

Stuart Whitman as

Leopold Sachse as Leopold Sachse

Eileen Farrell as Student at Mme. Gilly's / Voice of Marjorie Lawrence (voice)

Bess Flowers as Party Guest (uncredited)

William Olvis as Don José in 'Carmen'

Marcella Reale as Musetta in 'La bohème'

Gilbert Russell as Manrico in 'Il trovatore'

Rudolph Petrak as Tenor

Gene Roth as King Marke in 'Tristan und Isolde' (non-singing scene)

Tudor Williams as King Marke in 'Tristan und Isolde' (singing scene)

Armando Tokatian as Rodolfo in 'La bohème'

Edwin Dunning as Marcello in 'La bohème'

Jeanne Determann as Soprano in 'Tristan und Isolde'

Jean Bonacorsi as Contralto in 'Tristan und Isolde'

Joseph Gaudio as Samson in 'Samson et Dalila'

Charles Gonzales as Alcindoro in 'La bohème'

Stephen Bekassy as Comte Claude des Vignaux

Doris Merrick as Nurse (uncredited)

Lomax Study as Metropolitan Stage Manager (uncredited)