Actor Simon Williams; singer Heather Small; writer John Higgs and angler Marina Gibson join Aasmah Mir and the Reverend Richard Coles.

The actor Simon Williams got his big break playing James Bellamy in the period drama Upstairs, Downstairs. He is currently starring as Justin Elliott in the BBC Radio 4 series the Archers and a mysterious property developer - known as "the chairman" - in East Enders on BBC One. He is performing in Posting Letters to the Moon with his wife, the actress Lucy Fleming in which the couple read the wartime letters between Lucy's parents Celia Johnson and her husband Peter Fleming. Posting Letters to the Moon is at the Jermyn Street Theatre on November 19th.

Heather Small is a singer and songwriter, best known for her work with the soul band M People who came to attention with hits including Moving on Up, One Night in Heaven and Search for the Hero. Now a solo performer, Heather is a former contestant on the BBC One series Strictly Come Dancing. Heather Small is on tour in 2018.

Marina Gibson is a passionate angler and fishing instructor who started trout fishing at the age of 5. Her fishing trips have taken her around the world - she has cast her line for trout in Norway and for milkfish, bonefish and triggerfish on Christmas Island in the Indian Ocean.

John Higgs is a writer. In his new book Watling Street he takes a journey along Watling Street, from Dover to Anglesey - a road of witches and ghosts, of queens and highwaymen, of history and myth and Chaucer and Dickens. Watling Street - Travels through Britain and its Ever-Present Past is published by Weidenfeld & Nicholson.

Also on the programme DJ and filmmaker Don Letts reveals his Inheritance Tracks.

Producer: Paula McGinley