The Madame Blanc Mysteries is returning to Channel 5, with Sally Lindsay reprising her role as Jean White. After a revealing confession at the end of the previous season, she and Dom (portrayed by Steve Edge) are exploring new dimensions in their relationship.

The first episode, titled The Beach Club, delves into a complex murder mystery following the discovery of a major company's CEO found dead at sea, with two antique coins placed over his eyes. Jean is charged with determining whether the rare and costly coins were the motive behind the CEO's murder. All the regular cast members will return, including Alex Gaumond as Caron, Sue Holderness as Judith, Robin Askwith as Jeremy, and Sue Vincent as Gloria.

Several familiar faces will also be making a comeback, such as Tony Robinson as Uncle Patrick, Jacqueline Berces as Gendarme Richard, Sanchia McCormack as Charlie, and Djinda Kane as Simone.

Here's everything you need to know about the guest cast for the first episode.

Dan March is an actor, comedian, writer, and director who is primarily known for his theatre roles.

He has some significant TV credits to his name, including Miranda, Pramface, Innocent, as well as appearances in EastEnders, Casualty, and Doctors.

The star featured in Johnny English Strikes Back alongside Rowan Atkinson.

Samantha Power is a 52 year old Irish actress who most recently played Bev in Bank of Dave 2: The Loan Ranger.

She also portrayed Tina Dingle in Emmerdale and Donna McDonagh in Brassic.

The actress has had various roles in Doctors and Coronation Street, and she played Simone Booth in Ackley Bridge.

Greta Holland's big break will be in The Madame Blanc Mysteries as the star's only other credit was as Mara in a TV mini series called Untitled Project Icon.

Malcolm Galea is a playwright and theatre professional based in Malta.

His notable TV credits include Helen of Troy, Kryminalni, Angora and The Way Back.

Nicky Naude is a 60 year old Canadian actor who has had a successful Hollywood career.

He has featured in blockbuster films such as The Bourne Identity and Hitman.

Viewers may recognise him as Darius from the TV series Furies.

Michelle Kirk appears to be making her TV debut in The Madame Blanc Mysteries.

Miguel Formosa is a Theatre and Communications graduate from the University of Malta.

He co-created the play KomduSkomdu and recently starred in Teatru Malta's GUTZ. He also performed in SnowGlobe, Malta's first show for a single audience member on the autism spectrum, and in Harbour Odyssey at an international arts festival.

The Madame Blanc Mysteries returns to Channel 5 on March 20 at 9pm