Dr. Leonard Gillespie
Lionel Barrymore
Dr. James Kildare
Lew Ayres
Mr. Robert Chanler
Pierre Watkin
Mrs. Chanler
Nella Walker
Blue Swan Waiter (uncredited)
Murray Alper
Dr. Collins (uncredited)
Don 'Red' Barry
Harry Cook (uncredited)
Granville Bates
Nurse (uncredited)
Barbara Bedford
Little Boy's Mother (uncredited)
Margaret Bert
Miss Sally Green (uncredited)
Marie Blake
Boardinghouse Landlady (uncredited)
Virginia Brissac
Coronary Patient (uncredited)
John Butler
Alice Raymond
Lynne Carver
Dr. Bates (uncredited)
Don Castle
Maggie (uncredited)
Janice Chambers
Dr. Joiner (uncredited)
Roger Converse
Nurse Parker (uncredited)
Nell Craig
President, Board of Directors (uncredited)
Frank Dae
Bess Flowers
Head Nurse (uncredited)
Brenda Fowler
Bartender (uncredited)
Harrison Greene
Dr. Harris (uncredited)
Howard Hickman
Charlie (uncredited)
Cy Kendall
Joe Wayman
Nat Pendleton
Lodger Bringing Blanket (uncredited)
Mary MacLaren
Lodger Going for Ambulance (uncredited)
James Pier Mason
Clancy (uncredited)
Tom McGuire
Intern (uncredited)
Jack Murphy
Mike Ryan (uncredited)
Frank Orth
Albert Foster (uncredited)
Leonard Penn
Cyril Ring
Conover (uncredited)
Clinton Rosemond
Gilbert Russell
Resident Doctor (uncredited)
Edwin Stanley
Barbara Chanler
Jo Ann Sayers
Dr. Vickery (uncredited)
Phillip Terry
Detective Herman (uncredited)
Emmett Vogan
Little Boy (uncredited)
Bobs Watson
Ed (uncredited)
Jack Woody
Board Member (uncredited)
William Worthington
Dr. Stephen Kildare
Samuel S. Hinds
Mrs. Martha Kildare
Emma Dunn
Dr. P. Walter Carew
Walter Kingsford
Jack Hamilton
Truman Bradley
Dr. Lane-Porteus
Monty Woolley
Director
Harold S. Bucquet
Music
David Snell
Recording Supervision
Douglas Shearer
Story
Max Brand
Director of Photography
John F. Seitz
Writer
Harry Ruskin
Set Decoration
Edwin B. Willis
Willis Goldbeck
Art Direction
Cedric Gibbons
Editor
Elmo Veron
Assistant Art Director
Malcolm Brown