
"Who was that lady I saw you outwit last night? That was no lady … That was ‘Mum’ Wilberforce, …"
Five oddball criminals planning a bank robbery rent rooms on a cul-de-sac from an octogenarian widow under the pretext that they are classical musicians.
Professor Marcus

Claude, alias 'Major Courtney'

Louis, alias 'Mr. Harvey'

Harry, alias 'Mr. Robinson'

'One-Round', alias 'Mr. Lawson'

Mrs. Wilberforce

The Superintendent

The Sergeant

The Barrow Boy

Large Lady (uncredited)
Hypatia (uncredited)
Cab Driver (uncredited)

Burglar (uncredited)
Parcels Clerk (uncredited)

Junk Man (uncredited)

Miss Pringle (uncredited)

Security Van Driver (uncredited)
Station Master (uncredited)
Security Guard (uncredited)

Second Cab Driver (uncredited)

Lettice (uncredited)

Detective (uncredited)

(uncredited)

Constable (uncredited)

Radio Car Policeman (uncredited)
Nervous Man (uncredited)
Pavement Artist (uncredited)
Detective at Parcels Office (uncredited)

Policeman (uncredited)

Constance (uncredited)