Comedian and actor Omid Djalili; playwright Jack Thorne; fitness expert Diana Moran and singer and presenter Dashni Morad join Libby Purves.

Diana Moran is well known as The Green Goddess who, back in the 1980s and clad in emerald green lycra, encouraged television viewers to shape up. Her new book Sod Sitting, Get Moving! urges people in their 60s, 70s and 80s to exercise and eat healthily to help with fitness, strength and suppleness in their later years. The former catwalk model discovered the joy of keeping fit in her 30s as she convalesced from a major operation, devising her own exercise regime to help her recovery. Sod Sitting, Get Moving! By Diana Moran and Muir Gray is published by Green Tree.

Dashni Morad is a television presenter and singer. She is a former Kurdish refugee whose family fled from Iraq and Saddam Hussein's persecution when she was five. The family finally settled in the Netherlands where her broadcasting career blossomed. Dashni set up a charity, Green Kids, which helps children affected by conflict and has established two libraries at refugee camps across Iraqi Kurdistan. She is donating the proceeds of her new single, Love Wins, to Green Kids.

Jack Thorne is an award-winning writer whose work spans theatre, film, television and radio. His new musical Junkyard is inspired by the true story of the Lockleaze playground in Bristol - known as 'The Vench' - which was established over 30 years ago and is still operating today. Jack's father built the Vench as part of an outreach scheme to encourage creativity and inventiveness and to give children a taste of manual labour. Jack's theatre credits include Harry Potter and the Cursed Child, Hope and Let the Right One In and his television work includes National Treasure and This is England. Junkyard is at the Bristol Old Vic and then on tour.

Omid Djalili is an award-winning comedian and actor born in London to Iranian parents. He's currently on a UK tour with Schmuck for a Night in which he tries to make sense of the world around him. He will make his Chichester Festival Theatre debut playing Tevye in Fiddler on the Roof in July. His stage credits include Oliver! and What the Butler Saw in the West End and films include The Infidel, Shaun the Sheep and Gladiator. Schmuck for a Night is currently on tour. Fiddler on the Roof is at Chichester Festival Theatre.

Producer: Paula McGinley.

Omid Djalili; Diana Moran; Jack Thorne; Dashni Morad.