The Monster Walks

The heiress of the Earlton estate who returns home amid a storm to decide her inheritance. She is resilient and observant, uncovering the schemes surrounding her fortune. Ruth faces danger from the household intrigues and the uncanny threat of the basement ape, standing as the film’s moral center.

Ruth’s fiancé and a medical doctor who tries to protect her as the plot unfolds. He investigates the family’s plans, warns Ruth, and acts quickly to prevent the murder schemes. Ted’s rational approach contrasts with the household’s superstition and greed.

Ruth’s invalid uncle who orchestrates the estate’s division and becomes a target of Hanns’s violence. He embodies the old family guard, scheming toward wealth and control while hiding frailties and fears. His plan collides with Hanns’ ambitions and eventually leads to further danger.

The housekeeper who feels the sting of a meager allowance and becomes entangled in the family’s deadly plans. She is a practical, weathered member of the estate who ultimately falls victim to the mansion’s horror. Her presence underscores the social dynamics of service and wealth.

The housekeeper’s son who partners with Robert to seize the inheritance. He is ambitious, ruthless, and impulsive, willing to murder those around him to achieve wealth. His actions escalate the danger as the plan spirals into violence, including his confrontation with Ruth and the ape.