The three lead actors are Michael Keaton as Dr. Samuel Finnix, Peter Sarsgaard as Rick Mountcastle, and Kaitlyn Dever as Betsy Mallum in the Hulu/Disney+ limited series Dopesick.
Main cast
- Dr. Samuel FinnixMichael Keaton1Main
- Rick MountcastlePeter Sarsgaard1Main
- Betsy MallumKaitlyn Dever1Main
- Bridget MeyerRosario Dawson1Main
- John BrownleeJohn Hoogenakker1Main
- Billy CutlerWill Poulter1Main
- Richard SacklerMichael Stuhlbarg1Main
- Amber CollinsPhillipa Soo1Main
Supporting cast
- Jerry MallumRay McKinnon1Supp
- Pamela MallumMare Winningham1Supp
- Randy RamseyerJake McDorman1Supp
Guest & voice
- KathrynCleo King1Guest
- Paul MendelsonMehmet Ergen1Guest
- Debbie FinnixStacey Oristano1Guest
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About this cast
Dopesick is a 2021 American limited series that dramatises the opioid crisis in the United States, focusing on the actions of Purdue Pharma and the Sackler family. The three lead actors are Michael Keaton, Peter Sarsgaard, and Kaitlyn Dever, portraying a doctor, a federal prosecutor, and a young miner respectively.
FAQs
Who plays Dr. Samuel Finnix in Dopesick?
Michael Keaton plays Dr. Samuel Finnix, a doctor in rural Virginia who becomes addicted to OxyContin.
Who plays Betsy Mallum in Dopesick?
Kaitlyn Dever plays Betsy Mallum, a young coal miner who becomes addicted to OxyContin after an injury.
Who plays Richard Sackler in Dopesick?
Michael Stuhlbarg plays Richard Sackler, the former president of Purdue Pharma.
Is Dopesick based on a true story?
Yes, Dopesick is based on the non-fiction book ‘Dopesick: Dealers, Doctors, and the Drug Company That Addicted America’ by Beth Macy.
How many episodes are in Dopesick?
Dopesick is a limited series with 8 episodes.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026