Main
Eric Bana as Kyle Turner, an National Park Service Investigative Services Branch (ISB) special agent at Yosemite National Park who is still grieving the loss of his young son from 6 years ago
Sam Neill as Paul Souter, the chief park ranger of Yosemite and Turner’s mentor
Rosemarie DeWitt as Jill Bodwin, Turner’s ex-wife who used to be a teacher
Lily Santiago as Naya Vasquez, a rookie National Park Service ranger who moved to Yosemite from Los Angeles and is assisting Turner with the alleged murder victim Lucy
Wilson Bethel as Shane Maguire, the wildlife management officer at Yosemite and a former Army Ranger
Recurring
William Smillie as Bruce Milch, a veteran park ranger at Yosemite
Raoul Max Trujillo as Jay Stewart, a colleague and an indigenous friend of Turner who provides insights into local symbols and heritage
Joe Holt as Lawrence Hamilton, the park superintendent, focused on public image amid the crisis
Josh Randall as Scott Bodwin, Jill’s current husband who is a dentist
Ezra Franky as Lucy Cook, the alleged murder victim known initially as Jane Doe, with a complex backstory involving abuse and disappearance
Nicola Correia-Damude as Esther Avalos, a lawyer pressuring Turner over the disappearance of Sean Sanderson who went missing 6 years ago
Trevor Carroll as Mr. Begay
