The upcoming Peacock miniseries “Devil in Disguise: John Wayne Gacy” has added five new regular characters.

Gabriel Luna ("The Last of Us," "Terminator: Dark Fate"), James Badge Dale ("Savant," "1923"), Michael Angarano ("Oppenheimer," "This Is Us"), Chris Sullivan ("This Is Us," "Mercy") and Marin Ireland all star in the series. They appear opposite Michael Chernus, who will play Gacy.

The show is inspired by the 2021 Peacock docuseries "John Wayne Gacy: Devil in Disguise," which was produced by NBC News Studios. Gacy infamously murdered 33 young men between 1972 and 1978 before his capture.

The official logline for the show states that it "peels back the twisted layers of Gacy's life, weaving together the heartbreaking stories of his mostly gay victims; exploring the grief, guilt and trauma of their families and friends; and exposing the systemic failures, missed opportunities and societal prejudices that fueled his reign of terror."