Old Mother Riley falls into money so goes to Paris, where she is mistaken for a spy.

Arthur Lucan
as Old Mother Riley

Kitty McShane
as Kitty Riley

Jerry Verno
as Joe

Magda Kun
as Madame Zero

C. Denier Warren
as Commissaire of police

Stanley Vilven
as Hotel Manager

Douglas Stewart
as Chairman

George Wolkowsky
as Apache

Richard Riviere
as French Officer