13:10Desert Island DiscsJohn MortimerBBC Radio 4 Duration: 11 minutes Sat 20th Jan 1968, 13:10 on BBC Home Service BasicAvailable for over a yearListen nowRoy Plomley's castaway is playwright and barrister John Mortimer. Show more ContributorsPresenter:Roy PlomleyInterviewed Guest:John MortimerGenresFactualArts, Culture & the MediaFactualLife StoriesBrandDesert Island Discs Source: BBC Online