By Johanna Spyri. The classic children's favourite, dramatised by Berlie Docherty. Heidi is 5 years old when she first goes to live in the Swiss Alps. with Kirsty Adams. Mark Burrows , Debbie Arnold , Zulema Dene , Patience Tomlinson. Christopher Good, Neville Jason , James Greene , Sandra James Young. Mark Straker , Paul Bailey , David Collings and Michael Muskett. Director Janet Whitaker