Occupation: Agent/Manager

Siblings: Iris Knox

Appearances: Season 1

Who’d Play Her: Beanie Feldstein

The Sister Who Loved Too Much: Sadie Knox was fiercely devoted to her younger sister, Iris, and convinced that no one understood Iris’s talent—or knew what was best for her—as well as she did. Energetic, impulsive, and endlessly determined, Sadie involved herself in every aspect of Iris’s acting career, often blurring the line between supportive sister and controlling manager.

Sadie repeatedly pressured agents, producers, and industry figures to create opportunities for Iris. Her schemes briefly helped Iris land a role on the primetime drama Trauma Room, but her interference ultimately damaged Iris’s reputation and cost her representation at both the Miranda Blackthorne Agency and Vaughan Novak’s rival firm.

Behind Sadie’s devotion was a deep fear of abandonment. Years earlier in Edmonton, she had become obsessively attached to a television producer and stalked both him and his new girlfriend. The episode resulted in her being committed to Meadow Haven, though Iris believed that period of Sadie’s life was behind them.

When Iris realized the extent of Sadie’s destructive effects on her career, she vowed to never forgive her. After a drunken Lara Devon struck Sadie with her car, Sadie claimed that doctors had discovered she had cancer. The diagnosis was a lie designed to make Iris forgive her and remain close. Iris immediately put aside her anger, while Blake Distefano became suspicious and began investigating Sadie’s story.

When Blake came close to exposing her, Sadie lured him to Mrs. Tremond’s house by pretending Iris was in danger. She drugged his tea, chained him inside the isolated conservatory, and forged a note claiming that he had chosen to leave town. Sadie planned to take Iris away from Los Angeles and leave Blake imprisoned until the house’s owner returned months later.

Blake’s dog, Betsy, repeatedly sensed that he was still inside the house. When Blake attempted to escape, Sadie struck him unconscious. As the wildfires spread, she set fire to the property in an attempt to destroy the evidence with Blake still trapped inside.

Betsy led Iris through the burning house, where she discovered Blake chained in the conservatory. Once the truth was exposed, Sadie admitted that she had faked cancer and imprisoned Blake because she believed he would convince Iris to abandon her.

Sadie was arrested and eventually pleaded guilty, accepting a return to psychiatric treatment. During a final visit, Iris told Sadie that she no longer considered her a sister. For Sadie, the rejection represented the very loss she had committed increasingly desperate acts to prevent.

Sadie believed every manipulation was an expression of love. She did not see herself as hurting Iris, but as protecting, guiding, and preserving the most important relationship in her life. In the end, however, her fear of being abandoned drove her to betray Iris’s trust, nearly kill Blake, and destroy the bond she had been trying so desperately to save.