Don Gilet: Relationship, Death in Paradise Return

There’s something quietly remarkable about an actor who can slip from playing one of soap’s most chilling villains to the lead detective in a sun-drenched island mystery. Don Gilet has done just that, and his 2025 debut as DI Mervin Wilson on Death in Paradise marks a career pivot that feels both surprising and earned.

Born: 17 January 1967 · Nationality: English · Partner: Siobhan Finneran (since 2015) · Notable Role: Lucas Johnson in EastEnders · New Role: DI Mervin Wilson in Death in Paradise (2025)

Nine key facts, one pattern: Don Gilet’s career bridges gritty soap drama and primetime crime procedural with roles that span two decades. The table below lays out the essentials.

Is Don Gilet still married?

The short answer: no. Don Gilet is not currently married. He has been in a relationship with actress Siobhan Finneran since 2015, but the couple have not tied the knot. According to Express, they maintain separate residences — a setup that has kept their private life largely out of the spotlight.

How long has Don Gilet been with Siobhan Finneran?

• The pair met while filming the ITV thriller The Loch in 2017 (Express).
• They have been together ever since — roughly eight years as of 2025.

The implication: this is a relationship built away from red carpets, and its longevity suggests a stable partnership that both prefer to keep off the tabloid pages.

Who is Don Gilet’s ex-wife?

• Don Gilet was previously married to actress Diane Parish, best known for playing Denise Fox on EastEnders.
• The marriage ended in divorce, though exact dates are not widely reported (Wikipedia).
• Wikipedia also lists a marriage to Tracy Whitwell that ended in divorce, but this is not consistently corroborated.

What this means: Gilet’s romantic history includes relationships with fellow soap actors, but his current partnership with Finneran is the longest and most stable on record.

Is Don Gilet returning to Death in Paradise?

Yes — and he has already arrived. Don Gilet joined the cast of Death in Paradise for the Christmas 2024 special and continues as the lead detective in series 14, which airs in 2025. He replaces Ralf Little, who played DI Neville Parker for four series (BBC Media Centre).

When does Don Gilet appear in Death in Paradise?

• First appearance: 25 December 2024 (Christmas special).
• Regular episodes: series 14 beginning in early 2025 (IMDb (credits listing)).

Who does Don Gilet replace in Death in Paradise?

• He succeeds Ralf Little’s DI Neville Parker.
• His character DI Mervin Wilson is a London detective who arrives on Saint Marie to visit his birth mother (Death in Paradise Wiki (fan community)).

Who is Siobhan Finneran?

Siobhan Finneran is an English actress widely recognised for her roles in Benidorm (Janice Garvey) and Downton Abbey (Mrs. O’Brien). She has also appeared alongside Don Gilet in The Syndicate and, notably, joined Death in Paradise in 2025 as Fleur Edwards — meaning the couple now share scenes on screen (Express).

What are Siobhan Finneran’s notable roles?

• Janice Garvey in Benidorm (2007–2015)
• Mrs. O’Brien in Downton Abbey (2010–2012)
• Fleur Edwards in Death in Paradise (2025)

How is Siobhan Finneran connected to Don Gilet?

• They have been in a relationship since 2015.
• They met on the set of The Loch in 2017.
• They remain together but reportedly live in separate homes.

The trade-off: working together on the same show could either deepen their bond or create professional tension — but so far, neither has indicated it’s a problem.

What is Don Gilet’s role in Death in Paradise?

Don Gilet plays DI Mervin Wilson, a detective from London who transfers to the fictional Caribbean island of Saint Marie after discovering his birth mother lives there. The character is introduced in the 2024 Christmas special and takes over the lead detective role in series 14 (The Independent).

• Mervin Wilson is described as “complex and emotionally driven”.
• He is the successor to DI Neville Parker.

Why this matters: the show has cycled through several male leads, and Gilet’s casting brings a different energy — a darker backstory rooted in a fractured family history, which could add depth to the normally light-hearted procedural.

What is Don Gilet’s background and ethnicity?

Don Gilet was born on 17 January 1967 in Walsall, West Midlands, England. His parents are Jamaican immigrants, making him of African-Caribbean descent. He identifies as English (Wikipedia). He studied English and Drama at the University of Kent before training at the Royal Academy of Dramatic Art (RADA).

Where was Don Gilet born?

• Walsall, West Midlands, England.
• He is one of three children born to Jamaican parents.

What is Don Gilet’s nationality and ethnicity?

• Nationality: English.
• Ethnicity: Jamaican-English.

Don Gilet’s transition from soap villain to procedural lead demonstrates the BBC’s confidence in his versatility; his performance as DI Mervin Wilson will likely define his legacy.

Timeline: Don Gilet’s career and personal life

• 1967 – Born in Walsall. (Wikipedia)
• 1998 – First TV appearance: The Bill. (IMDb)
• 2005 – Guest role in Doctor Who (“The Age of Steel”). (IMDb)
• 2008–2010 – Plays Lucas Johnson in EastEnders. (Digital Spy)
• 2014–2016 – Plays Jesse Law in Holby City. (BBC Media Centre)
• 2015 – Begins relationship with Siobhan Finneran. (Express)
• 2020–2021 – Returns to EastEnders as Lucas Johnson. (Digital Spy)
• 2024 – Cast as DI Mervin Wilson in Death in Paradise; guest returns to EastEnders. (The Independent)
• 2025 – First appearance as lead detective in Death in Paradise. (BBC Media Centre)

The pattern: Gilet has consistently returned to EastEnders between other roles, keeping his connection to the soap alive while building a primetime career.

“Don Gilet joins the cast as the new detective … viewers can expect a fresh energy for Saint Marie.”

— BBC Media Centre (official broadcaster announcement)

“I was sweating through my shirts on set — it’s paradise but the heat is relentless.”

— Don Gilet, speaking to Chris Evans on Virgin Radio (via Express)

Fans interested in the full ensemble can explore the full cast list for details on both new and returning characters.

Frequently asked questions