Dr. James Kildare
Dr. Leonard Gillespie
Cynthia 'Cookie' Charles
Dr. Donald 'Don' Winthrop
Miss Annabelle Kirke
Molly Byrd
Dr. Walter Carew
Nurse Parker
Willie Brooks
Sally
Mike Ryan
Conover (as George H. Reed)
Samuel Z. Cutter
Clifford Genet
Leo Cobb
Arnold Spencer
Mr. Hubbell
Mrs. Hubbell