Dudgeon made his first screen appearance in 1987. The following year, he appeared as a Second World War pilot in
Piece of Cake, alongside
Tim Woodward,
Jeremy Northam and
Nathaniel Parker.0 In 2010, Dudgeon appeared in an episode of the ITV crime drama
Midsomer Murders called "
The Sword of Guillaume". He was introduced in the episode as the cousin of Detective Chief Inspector Tom Barnaby, played by
John Nettles, who retired from the role. Dudgeon, also cast as a senior detective, took over as the lead character in
Midsomer Murders after the last episodes featuring John Nettles were screened in 2011. As of 2025 his tenure on the show has surpassed John Nettles', but he has not appeared in as many episodes. Dudgeon's character name is DCI
John Barnaby, which has been suggested may be a vehicle for continued sales to territories where the show is known as "Inspector Barnaby". Dudgeon had first appeared in
Midsomer Murders in the opening episode of the fourth series ("
Garden of Death"), playing a secondary character. In 2012, Dudgeon starred as
Norman Birkett on
BBC Radio 4's
Afternoon Play series in four plays written by Caroline and David Stafford, based on Birkett's cases. ==Personal life==