Peter Sullivan was born into a political family and he was expected to follow a career in politics and the law. He joined the National Youth Theatre at 17 and then trained at Central before studying in New York under Uta Hagen and at The Actors' Studio and then became a member of the Catalan theatre group La Fura Dels Baus. Over three decades he has played multiple leading roles in film and television in the US, UK and Europe and has been a National Theatre player for over 30 years. He speaks four languages and has performed in all of them.

Filmography

• 202522+1 — Doctor Farr
• The Iris Affair — Julian Baxter
• A Good Girl's Guide to Murder — Christopher Epps
• The Jetty — Blake
• The Sixth Commandment — David Jeremy
• 2022The Monkey's Paw — Sergeant Major Morris
• Around the World in 80 Days — Nyle Bellamy
• Baptiste — Michael
• 20187 Days in Entebbe — Amos Eiran
• 2018Earthy Encounters — John
• Strike — Andrew Fancourt
• 2017Tobey — Father
• 2016National Theatre Live: The Deep Blue Sea — William Collyer
• 2016The Limehouse Golem — Inspector Roberts
• Critical — Dr. Clive Archerfield
• Cuffs — CS Robert Vickers
• Indian Summers
• Poldark — Ralph Hanson
• 2015The Scandalous Lady W — Mr. James Farrar
• 2015We Are Happy — Steve
• The Crimson Field — Major Jocelyn Ballard
• 2014The Face of an Angel — James Pryce
• The Musketeers — Vargas
• 2013The Brunchers — Producer
• Ripper Street — Franklin Stone
• The Borgias — Cardinal Ascanio Sforza
• The Hour — Commander Laurence Stern
• 2010Morning Echo — Donald Moffatt
• Krod Mandoon and the Flaming Sword of Fire
• Trinity — D.I. Ryan Worthing
• 2008Hancock & Joan — Edward Joffe
• The Fixer
• The Passion — Temple Lawyer
• The IT Crowd — John
• Vital Signs — Gareth Reeves
• 2005A Very Social Secretary — Gould
• Extras — Film Director
• 2005Friends Reunited — Nick Roberts
• Nathan Barley — Geoff Moss
• The Thick of It — Geoffrey
• Sex Traffic — Rick
• Mile High
• 2003Monsieur N. — Thomas Reade
• Strange — Bob
• 2002Gypsy Woman — Policeman
• Spooks — Viktor Sarkisian
• Wire in the Blood — ACC Eden
• 2001Conspiracy — Karl Eberhard Schöngarth
• 2001Cyclops
• 2000Christie Malry's Own Double-Entry — Wagner
• 1999Cut
• Shockers — Fred Powell
• 1999The Adventures of Young Indiana Jones: Tales of Innocence — Col. Serre
• 1997The Jackal — Vasilov
• 1996Lord of Misrule — Dr. Glanville
• Backup — Det. Insp. Overton
• 1995The Butterfly Effect — Duncan McHale
• Chandler & Co — Paul Stoddard
• Peak Practice — Richard Beamer

Appearances as themselves (1)

• 2007Working with Pinter — Self