Death in Paradise Detectives in Order: Every Lead DI from Poole to Wilson
Since 2011, the BBC's Death in Paradise has been swapping out its lead detective every few series — and somehow it keeps working.
The show is set on the fictional Caribbean island of Saint Marie (filmed in Guadeloupe) and follows a British detective inspector who solves murders with a small local police team. Created by Robert Thorogood, the series has run for 15 series and counting, spawned two spin-offs (Beyond Paradise and Return to Paradise), and averaged millions of viewers per series despite — or maybe because of — its deliberately cosy, sun-drenched formula.
Five actors have played the lead DI so far. Here's each of them in order, how long they lasted, and how they left.
1. DI Richard Poole — Ben Miller (Series 1–3, 2011–2014)
The original. Richard Poole is a stiff, buttoned-up London detective who arrives on Saint Marie to investigate a murder and gets stuck there when his superiors decide he should stay on as the island's DI. He hates everything about the Caribbean — the heat, the sand, the insects, the informality. He wears a suit and tie in 30-degree weather and refuses to adapt.
Ben Miller played the role for two full series and one episode of the third. What made Poole work was the contrast: a deeply English man in an aggressively un-English environment. His dynamic with DS Camille Bordey (Sara Martins) — the local detective who found him infuriating and fascinating in equal measure — gave the show its emotional spine.
How he left: Poole was murdered in the Series 3 premiere — stabbed with an ice pick at a university reunion. It was a genuinely shocking decision for a light-hearted BBC drama: killing off the lead character and turning the detective into the victim. His replacement arrived in the same episode to solve his murder.
2. DI Humphrey Goodman — Kris Marshall (Series 3–6, 2014–2017)
Humphrey Goodman was everything Poole wasn't — warm, clumsy, openly emotional, and hopelessly disorganised. Kris Marshall (best known at the time from Love Actually and the BT adverts) brought a shambolic charm that shifted the show's tone noticeably. Where Poole was a reluctant exile, Humphrey genuinely fell in love with island life.
He served for roughly 30 episodes across four series, making him one of the longer-serving detectives. His romantic subplot — first with a long-distance girlfriend, then with DS Florence Cassell (Joséphine Jobert) — became a running thread.
How he left: Humphrey returned to London at the end of Series 6, having reconciled with his girlfriend Martha. A relatively quiet exit.
What happened next: Marshall reprised the role in the spin-off Beyond Paradise (2023–), in which Humphrey relocates to the Devon village of Shipton Abbott with his partner Martha. The series is still running.
3. DI Jack Mooney — Ardal O'Hanlon (Series 6–9, 2017–2020)
A different flavour entirely. Jack Mooney — played by Ardal O'Hanlon, best known as Dougal in Father Ted — arrived midway through Series 6 as a recently widowed Irishman. He brought his teenage daughter Siobhan with him to Saint Marie, and the early episodes dealt directly with his grief.
O'Hanlon played Mooney as gentle, slightly rumpled, and easy to underestimate — but sharp when it mattered. The fatherly energy was new for the show, and the fact that he was Irish rather than English added a subtle shift to the usual fish-out-of-water dynamic. He served for roughly 24 episodes.
How he left: In Series 9, Mooney met an artist named Anna and was tempted to leave the island with her. Instead, after a visit from Siobhan, he realised he'd been running from his grief rather than dealing with it — and decided to return to London. A warm, emotional farewell.
What happened next: O'Hanlon has since appeared in Return to Paradise, the Australian spin-off, where Mooney pops up in a supporting role — a kind of fairy-godfather figure to the new lead detective.
4. DI Neville Parker — Ralf Little (Series 9–13, 2019–2024)
The longest-serving detective in the show's history. Neville Parker arrived midway through Series 9 and stayed for roughly 40 episodes — more than any of his predecessors.
Ralf Little played Parker as neurotic, allergic to practically everything, and profoundly awkward in social situations. He's the kind of man who brings his own pillowcase to a Caribbean island. But beneath the fussiness was a genuinely brilliant detective — and, over time, a surprisingly emotional character. His unrequited feelings for DS Florence Cassell became one of the show's longest-running storylines.
Parker's era also saw some tonal shifts: he was accused of murder himself during Series 12 (a first for the show), and the later series leaned harder into the personal lives of the team.
How he left: In the Series 13 finale, Neville announced he was leaving Saint Marie to go travelling — partly to find himself, partly because his feelings for Florence had reached a dead end. Whether Florence went with him was left deliberately ambiguous.
5. DI Mervin Wilson — Don Gilet (Series 14–present, 2024–)
The current detective — and the one who breaks the formula. Every previous DI was a Brit (or Irishman) dumped on Saint Marie against their will, struggling to adjust. Mervin Wilson is different: he's British-Caribbean, came to the island to visit his mother Dorna Bray, and has a personal connection to the place from the start.
Don Gilet — known for EastEnders, Shetland, and Sherwood — debuted in the 2024 Christmas special and has led Series 14 and 15. Sharp, matter-of-fact, and less inclined to bumbling than his predecessors, Wilson brings a different energy. The show has also started exploring his family history on the island, which is new territory for the franchise.
Interesting detail: Gilet actually appeared in Death in Paradise back in 2015 — as a completely different character, Andre Morgan, in a one-off guest role.