The Sinister Urge

A seasoned director who answers to Gloria Henderson, orchestrating the smut operation and attempting to shield the racket from police scrutiny. His scheming and willingness to manipulate others place him at the center of the criminal enterprise, ultimately making him a target for Dirk.

The ringleader behind the Syndicate, she uses her position to control studios, actors, and money flow. She plots to protect the operation, but the escalating violence and Dirk's volatility threaten her grip on power, culminating in a fatal confrontation.

An increasingly unstable enforcer whose killings escalate the plot. He is driven by a mix of thrill and loyalty to the Syndicate, and his actions drive the body count as he hunts victims linked to the racket.

A police lieutenant who assigns high priority to the smut racket case, linking the crimes to a broader criminal network. He often pushes for faster action and collaborates with his partner to expose the Syndicate's reach.

Carson's associate and fellow detective who aids in the investigation of the park murders and the larger pornography racket. He contributes to the investigative pressure that drives the case forward.

A pornographic director whose studio serves as a key node in the production pipeline. He carries out orders from Gloria and Johnny, with the law closing in as the film reveals the routine of exploitation.

A local businessman who questions the waste of taxpayers' money on prosecuting pornography and is drawn into the moral debate surrounding the racket.

A member of the cast involved in the network around the smut operation. The summary does not detail his specific actions, but he is part of the ensemble surrounding the racket.

A young woman drawn into the film's world through an 'audition' and debt to Gloria, who is later murdered by Dirk. Her arc highlights vulnerability exploited by the racket.

A police officer who disguises herself as a woman to help trap Dirk, and who is knocked out during the confrontation with Johnny before Dirk's escape.