Pictured: Montserrat Caballé

Matthew Bannister on

Ray Galton, who, with his writing partner Alan Simpson, created Hancock's Half Hour and Steptoe and Son. Paul Merton pays tribute.

Gerald Russell, the psychiatrist who was the first to describe the eating disorder bulimia nervosa.

Evelyn Anthony, the novelist whose historical romances sold millions of copies.

The financier Sir Roger Gibbs, who transformed the fortunes of the Wellcome Trust.

And the Spanish opera singer Montserrat Caballé, who had a global hit with Barcelona - a duet with Freddie Mercury.

Interviewed guest: Paul Merton

Interviewed guest: Professor Janet Treasure

Interviewed guest: Ewan Ward-Thomas

Reader: Alexandra Constantinidi

Interviewed guest: Baroness Eliza Manningham-Buller

Archive clips from: Read All About It, Radio 4 04/01/76; Woman's Hour, Radio 4 27/11/74; Woman's Hour, Radio 4 15/08/88; The Tamarind Seed, ITC/Jewel Productions/Pimlico Films/Lorimar Productions, directed by Blake Edwards 1974; The Wellcome Trust (https://wellcome.ac.uk/about-us); Aled Jones, Radio Wales 05/07/08; Laughed off the Page: Ray Galton and Alan Simpson, Radio Scotland 26/01/07; Hancock: The Radio Ham, BBC TV 1961; Steptoe and Son: The Offer, BBC Light Programme 03/07/66; The Wrong Arm of the Law (film trailer), Romulus Films/Robert Velaise Productions, directed by Cliff Owen 1963; Mark Lawson Talks To: Galton and Simpson, BBC TV 19/03/08; Eyes on Wales: Homeless, Radio Wales 04/06/95; Desert Island Discs, Radio 4 10/10/81.