Pip Donaghy

as Professor Smith

as Ferdinand Foch

as Baptista Minola

as David Walker

as Cyril Richardson (1 episode)

as DCS Wilf Brooks

as Jack Colby (1 episode)

as Richard Shaw (2 episodes)

as Geoff Welland (1 episode)

as Martin

as Len Sheldon (1 episode)

as Martin (1 episode)

as Cabbie (1 episode)

as Monks (9 episodes)

as Richard Lister

as Inner Party Speaker

as Griffin / Invisible Man (6 episodes)

as Clytemnestra

as Eddie

as Maxie

as Bill Bailey

as Troy (5 episodes)

as Store Manager

as Man in car

as Player in Everyman Theatre Company, Liverpool