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