The Black Sheep

Maurice Costello

Harold Moreland - the Black Sheep's Brother

Helene Costello

Clara Moreland as a Child

Zena Keefe

Clara Moreland as an Adult

James Morrison

Percival Summers - Clara's Sweetheart

Leah Baird

Mrs. Moreland - Clara's Mother

Rose Tapley

Mrs. Harold Moreland

Leonard Grover

The Doctor

Harry Northrup

Edwin R. Phillips

Jack Moreland - the Black Sheep

Herbert Barry

Percival's Brother