The Secret of Dr. Kildare (1939) 77 minutes Drama Directed by Harold S. Bucquet Cast: Lew Ayres as Dr. James 'Jimmy' Kildare Lionel Barrymore as Dr. Leonard Barry Gillespie Lionel Atwill as Paul Messenger Helen Gilbert as Nancy Messenger Nat Pendleton as Joe Wayman Laraine Day as Nurse Mary Lamont Sara Haden ...