Our Mutual Girl was unique. Not quite a serial, not quite a newsreel and not strictly an advertisement, it combined elements of all three. In 52 weekly one-reel episodes, running from January 19, 1914 to January 11, 1915, the Mutual Girl outwitted villains, saw the sights of New York, met with theatrical and political celebrities (who frequently helped her out of trouble) and tried on fashionable outfits in chic stores. The fashions were an early example of product placement, although apparently not paid placement.
| Actor | Role |
|---|---|
| NNorma PhillipsOur Mutual Girl / Margaret | Our Mutual Girl / Margaret |
 Mayme KelsoMrs. James Knickerbocker - Margaret's Aunt | Mrs. James Knickerbocker - Margaret's Aunt |
| JJessie LewisLewis - Mrs. Knickerbocker's Maid | Lewis - Mrs. Knickerbocker's Maid |
| JJames AllingMrs. Knickerbocker's Butler | Mrs. Knickerbocker's Butler |
| GGrace FisherAunt Abbie | Aunt Abbie |
 Edward BrennanHoward Dunbar - the Man of Mystery | Howard Dunbar - the Man of Mystery |
 W. Ray JohnstonJack Stuyvesant | Jack Stuyvesant |
| EEvelyn DumoMargaret's Maid | Margaret's Maid |
 Arthur Conan DoyleSelf (episode 21) | Self (episode 21) |
 Douglas FairbanksSelf (episode 47) | Self (episode 47) |