Richard Hannay

Robert Powell

Sir Edmund Appleton

David Warner

Chief Superintendent Lomas

Eric Porter

Scudder

John Mills

Alex Mackenzie

Karen Dotrice

Sir Walter Bullivant

George Baker

Bayliss

Ronald Pickup

Marshall

Donald Pickering

Porton

Timothy West

David Hamilton

Miles Anderson

Lord Rohan

Andrew Keir

Magistrate

Robert Flemyng

Harkness

William Squire

McLean

Paul McDowell

Lord Bethane

John Welsh

Tillotson

David Collings

Fletcher

John Normington

Admiral

Tony Steedman

Woodville

Edward de Souza

P.C. Forbes

John Grieve

Stewart

Andrew Downie

Renfrew

Donald Bisset

Donald

Derek Anders

Martins

Oliver Maquire

Martins

Oliver Maguire

Lady Nettleship

Joan Henley

Perryman

Prentis Hancock

Milkman

Leo Dolan

Miller

James Garbutt

The Scott

Artro Morris

Crombie

Robert Gillespie

Guide

Raymond Young

Police Constable Scott

Paul Jerricho

Vicar

Michael Bilton

General (uncredited)

Guy Standeven

Bystander at Albert Court

Lewis Alexander

Nun (uncredited)

Jill Goldston

Onlooker (uncredited)

James Payne

Train traveller

Roy Beck

Man in Street

John Cannon

Spy in Street

John Clifford

Man at Meeting

Harold Coyne

Man at Liberal Party Meeting

Maxwell Craig

Maid

Liz Crowther

Butler

Anthony Dawes

Policeman

Harry Fielder

Sailor

Gerald Home

Man at Meeting

Cyril Kent

Official

Roy Lansford

Man at Meeting and Street

Henry Roberts

Restaurant Patron

Pat Ryan