Conspirator

Robert Taylor

as

Major Michael ...

Elizabeth Tayl...

as

Melinda Greyton

Robert Flemyng

as

Captain Hugh L...

Harold Warrend...

as

Colonel Hammer...

Honor Blackman

as

Joyce

Marjorie Field...

as

Aunt Jessica

Thora Hird

as

Broaders

Wilfrid Hyde-W...

as

Lord Pennistone

Marie Ney

as

Lady Pennistone

Jack Allen

as

Raglan

Helen Haye

as

Lady Withering...

Cicely Paget-B...

as

Mrs Hammerbrook

Karl Stepanek

as

Radek

Nicholas Bruce

as

Alek

Cyril Smith

as

Detective Insp...

Janette Scott

as

Toby