BBC One

The Expedition

Frances Kelly (Minnie Driver) and Clem (James Nesbitt) with Vincent (Sacha Dhawan), Svetlana (Vera Filatova) and Maddy (Antonia Thomas)
Character Profile: FRANCES KELLY

Captain of the submersible Orpheus, Frances is fiercely protective of it. Her priority is the safety of the sub and the people on board. In a hostile environment such as the deep ocean you need one clear voice of authority – and she is that voice. Her work is her life. She’s never married. She’s never settled.
Character Profile: CLEM DONNELLY

Clem is a brilliant engineer, a calm and thoughtful presence. After losing his wife Catherine – a renowned marine biologist – in the Hermes submarine disaster six months ago he’s been bringing up their daughter Scarlet and together they have been trying to come to terms with Catherine’s death. Clem is determined to finally put his wife to rest by finding out what took place on that previous mission.
Character Profile: SAMSON UNGLISS

Marine Biologist Samson loves to be out in the field and wonders at the magic and potential of the deep. Intelligent, excitable and a man of passion in all areas, he's an adventurer who can’t imagine ever hanging up his diving gear. When Samson isn't diving to extraordinary places he works as a professor in an eminent university. This is where he met Maddy, a gifted PhD student with great promise.
Character Profiles: Other Orpheus Crew Members

SVETLANA - a Russian born and educated Computational Physicist who now works internationally. VINCENT - A talented and geeky volcanologist who cannot help but get excited about pieces of magma. MADDY - The youngest and least experienced crew member, Maddy is a PhD student of Marine Biology. RAYMOND - A last minute addition to the Orpheus crew who claims to be there as an admiralty salvage investigator, there to look into what happened to the Hermes.
TV Blog: Goran Visnjic interview

The actor who plays Samson talks about filming The Deep with James Nesbitt.
Read the interview on the BBC TV blog