The Drowning (2021) stars Jill Halfpenny as Jodie Walsh, Jonas Armstrong as Mark, and Rupert Penry-Jones as Daniel. It’s a four-part Channel 5 thriller about a mother who believes she has found her missing son eight years later.
Main cast
- Jodie WalshJill HalfpennyMain
- MarkJonas ArmstrongMain
- DanielRupert Penry-JonesMain
Supporting cast
- LizDeborah FindlaySupp
- MeganCatherine WalkerSupp
- TomCody MolkoSupp
- BenHarry Lister SmithSupp
- JasonJake DaviesSupp
- AbiIndia Ria AmarteifioSupp
- DCI HennesseyLara RossiSupp
Guest & voice
- Young TomLucas ButtonGuest
- Young BenOscar MorganGuest
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About this cast
The Drowning is a 2021 British psychological thriller series on Channel 5. It follows Jodie Walsh, a mother still grieving the disappearance of her young son eight years earlier, who becomes convinced that a teenage boy she meets is her lost child.
FAQs
Who plays Jodie Walsh in The Drowning?
Jill Halfpenny plays Jodie Walsh, the mother at the centre of the story.
Who plays Mark in The Drowning?
Jonas Armstrong plays Mark, Jodie’s ex-husband.
Who plays Daniel in The Drowning?
Rupert Penry-Jones plays Daniel, a man who becomes involved with Jodie’s search.
How many episodes are in The Drowning?
The Drowning is a four-part series, originally broadcast as a single season.
Is The Drowning based on a true story?
No, The Drowning is a fictional thriller written by Simon Tyrrell and not based on real events.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026