Lew Ayres
Dr. James Kildare
Lionel Barrymore
Dr. Leonard Gillespie
Laraine Day
Nurse Mary Lamont
Samuel S. Hinds
Dr. Stephen Kildare
Gene Lockhart
George Winslow
Emma Dunn
Mrs. Martha Kildare
Walter Kingsford
Dr. Walter Carew
Cliff Danielson
Dr. Jordan
Donald Briggs
Mr. Brownlee
Leona Maricle
Mrs. Brownlee
Charles Trowbridge
Atkinson
Arthur O'Connell
Intern (uncredited)
Eddie Acuff
Clifford Genet - an Orderly (uncredited)
Erville Alderson
Boylston - City Council Member (uncredited)
Arthur Aylesworth
Mr. Cobb - a Farmer (uncredited)
Barbara Bedford
Carew's Secretary (uncredited)
Jack Carr
Dr. Marsh (uncredited)
Mary Cecil
Mrs. Deering (uncredited)
George Chandler
Parkersville Counterman (uncredited)
Ken Christy
Dickson - City Council Member (uncredited)
Jane Drummond
Nurse Probationer (uncredited)
Ralph Dunn
Motorcycle Cop (uncredited)
Bob Ingersoll
Carpenter Adding Sign on Door (uncredited)
Claire McDowell
Nurse for Mr. Winslow (uncredited)
Horace McMahon
Foghorn Murphy (uncredited)
Frank Orth
Mike Ryan (uncredited)
Milton Parsons
Parkersville Crazy Man (uncredited)
Ruth Robinson
Mother of Baby (uncredited)
Ferris Taylor
Dr. Coldridge (uncredited)
Kay Vallon
Nurse Shaw (uncredited)
