Cecil Parker
Claude (a.k.a. 'Major Courtney')
Herbert Lom
Louis (a.k.a. 'Mr. Harvey')
Peter Sellers
Harry (a.k.a. 'Mr. Robinson')
Danny Green
One-Round (a.k.a. 'Mr. Lawson')
Katie Johnson
The Old Lady - Mrs. Wilberforce
Aileen Lewis
Lady Leaving Kings Cross Station
George Spence
Bystander Near Fruit Barrow
Peter Williams
Detective at Parcels Office