Naomi Nagata

Naomi Nagata is the chief engineer aboard an ice hauler in the Belt, the person everyone quietly trusts to keep the ship alive. Sharp, self-possessed, and fluent in a dozen kinds of machinery, she carries a Belter's wary politics and a private history she doesn't offer up easily.

Dominique Tipper plays competence as its own kind of charisma — Naomi solves problems with her hands and her head before anyone else has finished panicking, and the show trusts that stillness rather than padding it with speeches. Her Belter Creole, her guardedness, and her moral clarity give the show's politics a human face instead of a lecture.