'Everyone in My Family Has Killed Someone' Series Adds Eight, Including Sean Astin, Patricia Clarkson

By: Variety

Published: 2026-10-29T16:00:16.753939Z

Last Updated: 2026-10-30T14:06:26.490053Z

Category: Entertainment

Netflix’s darkly comic murder mystery is bringing a high-profile ensemble to its next chapter, with Sean Astin and Patricia Clarkson among the newly announced cast members.

The series is based on Benjamin Stevenson’s bestselling novel, which follows a family whose members share an unsettling connection: each has killed someone.

Astin and Clarkson join a lineup designed to deepen the show’s mix of crime, humor and family tension.

The story centers on Ernest Cunningham, whose relatives gather for a reunion that quickly turns into a murder investigation.

The eight additions are expected to broaden the family’s complicated history and add new suspects to the unfolding mystery.

Netflix has not yet announced a premiere date or released detailed information about the actors’ individual roles. The adaptation is being developed as a whodunit with a deliberately playful edge, balancing traditional murder-mystery suspense with sharp observations about family secrets. Fans of the novel will be watching to see how closely the series follows Stevenson’s intricate plot and whether the expanded cast introduces fresh twists.