Designer Raymond Cusick recalls his work on The Keys of Marinus, and discusses the challenges that this story held, with its weekly changes of location and inventive set-pieces.
as Himself
as The Doctor (archive footage)
as Ian Chesterton (archive footage)
as Barbara Wright (archive footage)
as Susan Foreman (archive footage)
as Arbitan (archive footage)
as Sabetha (archive footage)
as Altos (archive footage)
