Cast
Kynaston Reeves
Doctor (uncredited)
Nora Swinburne
Mrs. Thornton
Basil Gill
Doctor Page
Eliot Makeham
Jack the Pharmacist (uncredited)
Harry Terry
Miner (uncredited)
Rosalind Russell
Christine Manson
Athene Seyler
Lady Raebank
Rex Harrison
Dr. Frederick Lawford
Joss Ambler
Dr. A.H. Llewellyn
Robert Donat
Dr. Andrew Manson
Penelope Dudley-Ward
Toppy LeRoy
Francis L. Sullivan
Ben Chenkin
Edward Chapman
Joe Morgan
Felix Aylmer
Mr. Boon
Gus McNaughton
Tom Evans (uncredited)
Cecil Parker
Dr. Charles Every
Cameron Hall
Man Who Buys Microscope (uncredited)
Ralph Richardson
Dr. Philip Denny
Emlyn Williams
Owen
Mary Clare
Mrs. Orlando
Joan Kemp-Welch
Nurse Assisting at Childbirth (uncredited)
Leslie Phillips
Girl (uncredited)
Percy Parsons
Mr. Stillman
Bryan Herbert
Husband Whose Wife Has Typhoid (uncredited)
Bernard Miles
Medical Aid Society Committee Member (uncredited)