Dallas Miller is Monty’s wife and his social equal in the Permian Basin’s oil-world hierarchy — which is to say she is not a decoration but a participant. She navigates the marriage’s complicated arrangements with her own intelligence and her own agenda, and the show does not reduce her to her relationship to either Monty or Tommy. She has a perspective on the world both men have built around her, and it is sharper than either of them fully accounts for.

Moore brings to Dallas the watchfulness of a woman who has been underestimated long enough to have learned to use it. In a show full of men performing authority, Dallas is one of the few characters who does not need to perform anything. She has already made her calculations and is waiting for events to catch up with them.

Demi Moore’s career trajectory is one of the most instructive in modern Hollywood. She arrived as part of the Brat Pack adjacent generation in the mid-1980s, with St. Elmo’s Fire (1985) and About Last Night (1986) establishing her as a serious young actress. Ghost (1990) made her a global star: the film grossed over $505 million worldwide and became the highest-grossing film of 1990. For the next seven years she was among the most bankable and highest-paid actresses in Hollywood, commanding a reported $12.5 million for Striptease (1996) in a deal that made her the highest-paid actress in film history at that moment.

The films of her peak period — A Few Good Men (1992), Indecent Proposal (1993), Disclosure (1994), G.I. Jane (1997) — are studios taking their biggest female star and placing her in films designed to produce conversation as much as entertainment. She consistently chose roles that put her in the centre of cultural debates about gender, desire, and power, and she navigated that terrain with more intelligence than the critical reception of any individual film sometimes acknowledged.

The 2000s were quieter, and Moore has been candid in her memoir Inside Out (2019) about the personal and professional difficulties of that period. The Substance (2024), a body-horror film directed by Coralie Fargeat that screened in competition at Cannes, marked a significant return: a film that engaged directly with the industry’s treatment of ageing women, and Moore’s willingness to throw herself into it completely was both artistically and personally courageous. Landman follows as her first sustained television role — a medium she had largely avoided during her peak film years.