The forerunner of all serials, What Happened to Mary was a series of twelve monthly one reel episodes, each a complete entity in itself, revolving its immediate dramatic and melodramatic problems within the framework of a single episode and designed more for story and suspense situations than action.
Mary Fuller
as Mary
Marc McDermott
as Lt. Straker
Charles Ogle
as Richard Craig - Mary's Uncle
Barry O'Moore
as Henry - Craig's Son
Bliss Milford
as Daisy
Bigelow Cooper
as Mr. Foster - the Lawyer
William Wadsworth
as Billy Pearl
Miriam Nesbitt
as A Spy
Harold M. Shaw
as Rev. Cooper
