Samantha Sloyan cast as Margaret White in Flanagan's Carrie miniseries

Samantha Sloyan plays Margaret White, Carrie's religious and antagonistic mother, in Mike Flanagan's Carrie miniseries, a short series designed to tell its story in one run, according to Variety. Flanagan is writer, director and showrunner on the Stephen King 1974 adaptation, Variety reports. Summer Howell stars as Carrie; Amazon MGM Studios lists launch as 7 October 2026.