Big Sky follows private detectives Cassie Dewell (Kylie Bunbury) and Jenny Hoyt (Katheryn Winnick) as they investigate missing persons cases in Montana, with Ryan Phillippe as Cody Hoyt.
Main cast
- Cassie DewellKylie Bunbury1–3Main
- Jenny HoytKatheryn Winnick1–3Main
- Cody HoytRyan Phillippe1Main
- Ronald PergmanBrian Geraghty1–3Main
- Mark LindorDedee Pfeiffer1–3Main
- Margaret KleinsasserValerie Mahaffey1–3Main
- Jerrie KennedyJesse James Keitel1–2Main
- Beau ArlenJensen Ackles2–3Main
- Travis StoneLogan Marshall-Green3Main
Supporting cast
- Rick LegarskiJohn Carroll Lynch1Supp
- Walt KleinsasserTed Levine1–2Supp
- T-LockOmar Metwally2Supp
- EmilyJade Pettyjohn1Supp
- Danielle SullivanNatalie Alyn Lind1Supp
- Grace SullivanBritt Robertson1Supp
Guest & voice
- Sheriff TubbPatrick Gallagher1Guest
- AveryChad Willett1Guest
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About this cast
Big Sky is an American crime drama television series created by David E. Kelley, based on the novels by C.J. Box. The show premiered on ABC in 2020 and aired for three seasons, focusing on the intertwined lives of detectives and criminals in rural Montana.
FAQs
Who plays Cassie Dewell in Big Sky?
Cassie Dewell is played by Kylie Bunbury.
Who plays Jenny Hoyt in Big Sky?
Jenny Hoyt is played by Katheryn Winnick.
Who plays Cody Hoyt in Big Sky?
Cody Hoyt is played by Ryan Phillippe in the first season.
How many seasons of Big Sky are there?
Big Sky ran for three seasons from 2020 to 2023.
Is Big Sky based on a book?
Yes, it is based on the Cassie Dewell book series by C.J. Box, particularly ‘The Highway’.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026