
Age: 67
male
Matthew Avery Modine (born March 22, 1959) is an American actor and filmmaker. He shared the Venice Film Festival's Volpi Cup for Best Actor as part of the ensemble cast of Robert Altman's film Streamers (1983). He went on to play lead roles in several high-profile films throughout the 1980s, including Birdy (1984), Vision Quest (1985), and Married to the Mob (1988). He gained further prominence for playing U.S. Marine James T. "Joker" Davis in Stanley Kubrick's Full Metal Jacket (1987). Other notable films include Pacific Heights (1990), Short Cuts (1993), Cutthroat Island (1995), The Dark Knight Rises (2012), and Oppenheimer (2023). On television, he portrayed Dr. Don Francis in the HBO film And the Band Played On (1993), Sullivan Groff on Weeds (2007), Ivan Turing in Proof (2015), and Dr. Martin Brenner on Netflix's Stranger Things (2016–2022). Modine has been nominated twice for a Golden Globe Award for Best Actor in a Miniseries or Motion Picture Made for Television for his work in And the Band Played On and What the Deaf Man Heard and received a special Golden Globe for him and the rest of the ensemble in Short Cuts. He was also nominated for a Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Special for And the Band Played On.

We are introduced to Sirius Amory, an astronaut and scientist obsessed with learning about the Keywork. His wife, Meri, is not thrilled about his upcoming trip into the beams, but he leaves anyway. Once there, he checks in with his AI assistant, All Mother before entering the Keywork. Inside, he encounters various Entities who attempt to possess him. After three leave him completely worn out, he is protected by a fourth who is kind until someone can rescue him and get him out of the Keywork. Meanwhile, Meri has mourned him presuming his death, and tried to move on.
