Overview
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.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 23 | December 9, 1973 (85) | |
 | 31 | January 5, 1929 (47) | |
 | 47 | October 11, 1940 (75) | |
 | 32 | October 23, 1945 (65) | |
 | 26 | July 29, 1970 (84) | |
 | 44 | January 1, 1953 (85) | |
 | 38 | June 6, 1950 (75) | |
 | 38 | August 11, 1954 (80) | |
 | 34 | January 30, 1926 (48) |