cast
- John Sharp Kronk
-
Elizabeth Shepherd
Syrie Van Epp
-
Gary Cockrell
Phil Scrotty
-
Alan Curtis
Insp. Blood
-
William Maxwell
Sgt. Hound
-
June Watson
Miss Dunner
- Tim Barrett Christopher Vaughan
-
Clive Morton
Sir Wilfred Templar
-
Donald Webster
Weedy
-
Simon Prebble
Barrington-Pym
-
Windsor Davies
Sullavan
- Geoffrey Reed Hard Man
- Keith Pyott Bishop
-
Ingrid Hafner
Abigail Whitebait
- Kevin Brennan Whitebait
-
Oliver Johnston
Samson Whitby
-
Aubrey Morris
Robag
-
Patrick Kavanagh
Major Ironside
- Robert McBain Jolyon de Farge
-
Ian Trigger
Nonesuch
- Ray Gatenby Bo
- Sandra Downs Mary Bone
- George Ghent Removal Man
- Arthur Lester Waiter
-
Betty McDowall
Beryl Kempsford
-
William Moore
Harold Lemming
- Margery Withers Miss Winkle
-
Ivor Salter
Blinky
-
Marian Spencer
Helena of Morphania
-
Calvin Lockhart
Theobald Aboo
-
Roger Hammond
Ferdinand XVIII of Morphania
-
Nina Baden-Semper
Pearl
-
Pauline Collins
Syrie's Maid
- Peter Stephens Head of Department One
-
Des Braiden
Head of Department Eight
- Peter Jesson First Mr. Grimm
- Mark Hardy Second Mr. Grimm
-
Malcolm Douglas
Assassin