On screen
Cast
11 credited performers
Toby Longworth
Narrator
Douglas Adams
(archive footage)
Anthony Read
Character not listed
David Fisher
Character not listed
Michael Hayes
Character not listed
Steven Moffat
Character not listed
Robert Shearman
Character not listed
Pennant Roberts
Character not listed
Catherine Schell
Character not listed
Tom Chadbon
Character not listed
Julian Glover
Character not listed