Nat Pendleton
Joe Wayman, Ambulance Driver
Walter Kingsford
Dr. S.J. 'Walter' Carew, Hospital Administrator
Alma Kruger
Molly Byrd, Superintendant of Nurses
John Eldredge
Henry Adams, Amnesia Patient
Marie Blake
Sally, Hospital Switchboard Operator
Charles Waldron
Dr. 'Egghead' Squires, Messinger Inst.