Colin Lavers was a costume designer for the BBC. In 1982 he was scheduled to work on the Doctor Who story Four To Doomsday, which just happened to be the first story recorded by Peter Davison, and therefore the realisation of the Fifth Doctor's costume became his responsibility.
The cricket motif came out of discussions with Davison and producer John Nathan-Turner, who insisted the question-mark lapels sported by Tom Baker's Doctor should remain.
Lavers was also the costume designer on the 20th-anniversary story, The Five Doctors, which gave him the responsibility of creating costumes for a large number of Doctor Who alumni, some of whom had not been seen on television in colour before. He also worked on the 1978 story The Power of Kroll and the 1983 story The King's Demons.
Other productions in his long career included EastEnders, Last of the Summer Wine and Judge John Deed.
(with thanks to Ryan Wigley)