Toby Jones stars as solicitor John Mayhew, Andrea Riseborough as Romaine Heilger, and Billy Howle as Leonard Vole in the 2016 BBC adaptation of Agatha Christie’s Witness for the Prosecution.
Main cast
- John MayhewToby Jones1Main
- Romaine HeilgerAndrea Riseborough1Main
- Leonard VoleBilly Howle1Main
Supporting cast
- Emily FrenchKim Cattrall1Supp
- Sir Wilfrid RobartsDavid Haig1Supp
- Mr. MyersTim McMullan1Supp
- Janet MacKenzieMonica Dolan1Supp
- JudgeRobert Pugh1Supp
- Inspector HearnePaul Ready1Supp
Guest & voice
- Dr. HarrisonTom Mannion1Guest
- CarterHayley Carmichael1Guest
- Mr. CleggRichard McCabe1Guest
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About this cast
Witness for the Prosecution is a 2016 BBC two-part miniseries based on Agatha Christie’s classic courtroom drama. The story follows solicitor John Mayhew as he defends Leonard Vole, accused of murdering wealthy widow Emily French, while Vole’s enigmatic wife Romaine becomes a key witness.
FAQs
Who plays Leonard Vole in Witness for the Prosecution?
Billy Howle plays Leonard Vole, the accused murderer.
Who plays Romaine Heilger in Witness for the Prosecution?
Andrea Riseborough plays Romaine Heilger, Leonard Vole’s wife and a key witness.
Who plays John Mayhew in Witness for the Prosecution?
Toby Jones plays John Mayhew, the solicitor defending Leonard Vole.
Is Witness for the Prosecution a film or TV series?
It is a two-part TV miniseries that aired on BBC One in 2016.
Who plays Emily French in Witness for the Prosecution?
Kim Cattrall plays Emily French, the murder victim.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026