Peter Blythe (14 September 1934 – 27 June 2004) was an English character actor, probably best known as Samuel "Soapy Sam" Ballard in Rumpole of the Bailey.
Born in Yorkshire, Blythe studied drama on scholarship at the Royal Academy of Dramatic Art after serving in the Royal Air Force. He began his professional career as a repertory player with the Living Theatre Company, the Nottingham Playhouse and the Royal Shakespeare Company. He made his West End debut in 1965.
Blythe was frequently associated with the director Peter Hall and the playwright Alan Ayckbourn.
Blythe worked in films only rarely and usually in minor roles; his most substantial part was also in his last film appearance, The Luzhin Defence (2000). Other film credits include two films for Hammer Film Productions, A Challenge for Robin Hood (1967) and Frankenstein Created Woman (also 1967); his most successful film was Carrington (1995).
By contrast, Blythe appeared in several dozen television series, miniseries and films, most notably as Samuel Ballard, QC in Rumpole of the Bailey (1983–92). He guest-starred in episodes of The Avengers, UFO, Callan, New Scotland Yard, Special Branch, Agatha Christie's Partners in Crime, Agatha Christie's Poirot, Inspector Morse, Maigret, The Inspector Alleyn Mysteries, Between the Lines, Pie in the Sky, Goodnight Sweetheart, Dalziel and Pascoe and Foyle's War (aired posthumously), among many others. His miniseries appearances included The Barchester Chronicles, After the War and The Alan Clark Diaries. He narrated the 1970 TV comedy special Cucumber Castle starring the Bee Gees.