|Gustav von Seyffertitz||Mr. Grimes (as Gustave von Seyffertitz)|
|Roy Stewart||Dennis Wayne|
|Mary Louise Miller||Doris Wayne (the baby)|
|Charlotte Mineau||Mrs. Grimes|
|Spec O'Donnell||Ambrose Grimes (as 'Spec' O'Donnell)|
|Lloyd Whitlock||Joe Bailey, alias Stone|
|Mark Hamilton||Hog buyer (uncredited)|
Molly is the eldest resident of a prison-like orphanage run by the abusive Mr. Grimes, his neglectful wife and their diabolical son, Ambrose . When Mr. Grimes becomes involved in a kidnapping plot, Molly realizes she must somehow escape, and struggles to lead the younger children to freedom through the treacherous swamps that surround the orphanage where they have all been enslaved.