James Nesbitt stars as Detective Danny Frater in Suspect, with Joely Richardson as Dr. Sonia Lucas and Richard E. Grant as Dr. Michael Vargas.
Main cast
- Danny FraterJames Nesbitt1–2Main
- Dr. Sonia LucasJoely Richardson1–2Main
- Dr. Michael VargasRichard E. Grant1Main
Supporting cast
- DS Riya KhatriNiamh Algar1Supp
- DCI Mary WilliamsAnne-Marie Duff1Supp
- Dr. Leo PattersonBen Miller1Supp
- Dr. Amanda JonesSacha Dhawan1Supp
- Dr. Helen BanksAntonia Thomas1Supp
- Dr. Joe CollinsJames Murray1Supp
Guest & voice
- Dr. Sarah CollinsClare-Hope Ashitey1Guest
- Dr. Mark WilliamsAdrian Lester1Guest
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About this cast
Suspect is a British psychological thriller series on Channel 4, following Detective Danny Frater as he investigates the suspicious death of his estranged daughter. The show features a strong ensemble cast led by James Nesbitt, with each season presenting a new case.
FAQs
Who plays Detective Danny Frater in Suspect?
James Nesbitt plays Detective Danny Frater, the lead character in the Channel 4 series Suspect.
Who plays Dr. Sonia Lucas in Suspect?
Joely Richardson plays Dr. Sonia Lucas, a forensic psychologist and key ally to Danny Frater.
Is Suspect based on a true story?
No, Suspect is a fictional drama series created by Matt Baker and based on the Danish series ‘Forhøret’ (The Interrogation).
How many seasons of Suspect are there?
As of 2025, there are two seasons of Suspect, with the first airing in 2022 and the second in 2024.
Who plays Dr. Michael Vargas in Suspect?
Richard E. Grant plays Dr. Michael Vargas, a charismatic but manipulative psychiatrist in the first season.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026