
Jonathan Newth is a British actor who has appeared extensively in British television drama for over 50 years. Newth trained at the Central School of Speech and Drama. Newth's theatre work includes appearances with the RSC, in the West End and on Broadway. Newth's television credits include Emergency Ward 10, The Six Wives of Henry VIII, Ace of Wands, The Troubleshooters, Z-Cars, Callan, Van der Valk, The Brothers, Softly, Softly, Poldark, Doctor Who (Underworld), Notorious Woman, Secret Army (Barsacq), The Professionals, The Nightmare Man, The Day of the Triffids, Tenko (Colonel Clifford Jefferson), Triangle, Angels, Juliet Bravo, After Henry, The Adventures of Sherlock Holmes ("The Bruce-Partington Plans"), Boon, Bugs, The Bill, Agatha Christie's Poirot (Dumb Witness), Peak Practice and Heartbeat.

Agatha Christie's Poirot
TV • 1989

Casualty
TV • 1986

The Crown
TV • 2016

The Crown
TV • 2016

Doctor Who
TV • 1963

Play for Today
TV • 1970

Peak Practice
TV • 1993

Heartbeat
TV • 1992

Heartbeat
TV • 1992

The Professionals
TV • 1977

Sherlock Holmes
TV • 1984

Van der Valk
TV • 1972

Secret Army
TV • 1977

Poldark
TV • 1975

Callan
TV • 1967

Mystery and Imagination
TV • 1966

Hammer House of Mystery and Suspense
TV • 1984

Tenko
TV • 1981