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