# BBC Poirot Series Casts New Stars

> BBC's Poirot series adds Katherine Parkinson, Omari Douglas, and Toby Stephens to its cast.
- Title: BBC Poirot Series Casts New Stars · Deadline | Shortify
- Summary: BBC's Poirot series adds Katherine Parkinson, Omari Douglas, and Toby Stephens to its cast. The BBC and BritBox reveal the second Agatha Christie novel to be…
- Keywords: bbc, poirot, katherine parkinson, omari douglas, toby stephens, britbox, mammoth screen, agatha christie, entertainment, culture, Series, Casts
- Source: Deadline — https://deadline.com/2026/10/bbc-poirot-series-katherine-parkinson-toby-stephens-1237146589
- Author: Max Goldbart
- Published: 2026-10-05T15:00:00+00:00
- Read time: 1 min
- Topics: bbc, poirot, katherine parkinson, omari douglas, toby stephens, britbox, mammoth screen, agatha christie, entertainment, culture
## New Poirot Cast Members
The BBC and BritBox have added Katherine Parkinson, Omari Douglas, and Toby Stephens to their Poirot series cast.
## Second Christie Novel Adapted
The second Agatha Christie novel to be adapted for the Poirot TV show is Peril at End House.
## Previous Series Cast
The first Poirot series adaptation was based on Lord Edgware Dies, the first Agatha Christie novel.
## Additional Cast Members
Other new cast members include Jessica Alexander, Honor Swinton Byrne, Paul Forman, Arthur Hughes, Ralf Little, River Medway, and Natalie Quarry.
## Third Novel Unrevealed
The third Agatha Christie novel that the Poirot series will be part-based on remains to be revealed.
## Key takeaway

The BBC and BritBox reveal the second Agatha Christie novel to be adapted for their Poirot TV series.