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