
Age: 24
female
Sadie Elizabeth Sink (born April 16, 2002) is an American actress. She began her acting career in theatre, playing the title role in the musical Annie (2012–14) and young Elizabeth II in the historical play The Audience (2015) on Broadway. In 2016, she made her film debut in the biographical sports drama Chuck. Sink had her breakthrough portraying Max Mayfield in the Netflix science fiction series Stranger Things (2017–2025) and received critical acclaim for her performance in its fourth season. In 2021, she appeared in the horror film trilogy Fear Street and played the lead role in Taylor Swift's short film All Too Well. She then starred in Darren Aronofsky's psychological drama The Whale (2022), for which she received a Critics' Choice Movie Award nomination. Sink returned to Broadway in 2025, starring in the play John Proctor Is the Villain and earning a nomination for a Tony Award for Best Actress in a Play; the second youngest woman to achieve such.

Sadie Sink

Young Krystal
for Young Krystal in The Secrets of Us
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Foster sisters Krystal and Nichole have always been there for each other, so when Nichole is committed to a psychiatric hospital after trying to kill her husband, Krystal drops everything to defend her. Scarred by a hard upbringing, Nichole and Krystal managed to construct comfortable lives for themselves. Krystal became a respected lawyer, and Nichole was happily married to an architect—until Nichole starts raving that her husband isn’t her husband, believing that he’s an imposter. Driven by fierce loyalty, Krystal starts asking questions, but she’s not sure she can bear the answers. Her investigation leads to the sisters’ dark shared past…to a horrible tragedy and a well-guarded lie that cemented their sisterly bond. But that lie can’t kill the truth—the battered, gasping, clawing truth that’s coming for them both. Now Krystal and Nichole must both fight for the lives they’ve built before they’re consumed by the one they left behind.
