On screen
Cast
13 credited performers
Alfred Marks
Captain Katt/Ludovic French/Inspector Brough
Derek Royle
The Professor/Frank Lucas
Artwork unavailable
Janet Behan
Lieutenant Rook/Louise Jobling
Simon Rouse
Desmond Gibb
Artwork unavailable
Sarah James
Pat
Clare Clifford
Margot
Artwork unavailable
Howard Samuels
Toby
Artwork unavailable
John Elmes
Dave
Patricia Maynard
Madeleine Forsyth
Artwork unavailable
Ian Fairbairn
Ted
John Owens
Joe
Artwork unavailable
Ros Simmons
Mugwump/Sylvia Pym
David Hatton
Jack Judge