Sheridan Smith stars as the determined mother Ann Ming alongside Samuel Barnett as Stephen Port and Stephen Merchant as Detective Superintendent Martin Jones in the true-crime drama Four Lives.
Main cast
- Ann MingSheridan SmithMain
- Stephen PortSamuel BarnettMain
- Detective Superintendent Martin JonesStephen MerchantMain
- DebbieKarla-Simone SpenceMain
- DCI Tim DuffieldSimon NagraMain
Supporting cast
- PaulRufus JonesSupp
- Anthony WalgateWill MellorSupp
- Gabriel KovariTommy Lawrence KnightSupp
- Daniel WhitworthNiky WardleySupp
- Jack TaylorRish ShahSupp
- CarrieSheri RicoSupp
Guest & voice
- John MorganDerek RiddellGuest
- DC Dave WilsonJoe DempsieGuest
- MichelePippa HaywoodGuest
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About this cast
Based on the real-life story of the ‘Grindr killer’ Stephen Port, Four Lives focuses on the campaign for justice led by Ann Ming, the mother of one of Port’s victims. The series examines the failures of the Metropolitan Police and the fight to bring Port to account after he murdered four young men between 2014 and 2015.
FAQs
Who plays Ann Ming in Four Lives?
Sheridan Smith portrays the determined mother Ann Ming.
Who plays Stephen Port in Four Lives?
Samuel Barnett plays the real-life serial killer Stephen Port.
Is Four Lives based on a true story?
Yes, the series is a factual drama about the murders committed by Stephen Port and the subsequent campaign for justice by the victims’ families, focusing on the failings of the Metropolitan Police.
How many episodes are in Four Lives?
The series consists of three one-hour episodes.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026