Clark Gable
— Dr. George Ferguson
Myrna Loy
— Laura Hudson
Jean Hersholt
— Dr. Hochberg
Elizabeth Allan
— Barbara
Otto Kruger
— Dr. Levine
C. Henry Gordon
— Dr. Cunningham
Russell Hardie
— Dr. Michaelson
Wallace Ford
— Shorty
Henry B. Walthall
— enry B. Walthall
Russell Hopton
— Pete
Samuel S. Hinds
— Dr. Gordon
Frank Puglia
— Dr. Vitale
Leo Chalzel
— Dr. Wren
Donald Douglas
— Mac
Broderick O'Farrell
— Resident Doctor (uncredited)
Frank Reicher
— Doctor (uncredited)
Eulalie Jensen
— Nurse (uncredited)
Ray Cooke
— Dr. Finn (uncredited)