From Wikipedia
Chesney Allen, born William Ernest Chesney Allen (5 April 1893 – 13 November 1982) was a popular English entertainer of the Second World War period. He is best remembered for his double act with Bud Flanagan, Flanagan and Allen
He began his career in straight acting, making his debut in stock at the Wimbledon Theatre, London, in 1912. Serving in Flanders in the First World War, he made friends with Bud Flanagan, and worked with him from 1924. As music hall comedians, they would often feature a mixture of comedy and music in their act and this led to a successful recording career and roles in film and television. Flanagan and Allen were also members of the Crazy Gang and worked together in that team for many years.
Flanagan and Allen stopped performing together with Chesney Allen's retirement on health grounds.

Dunkirk
1958 · as Himself

Life Is a Circus
1960 · as Ches

Wild Boy
1934 · as Auctioneer and Bookmaker

The Bailiffs
1932 · as Meredith

Alf's Button Afloat
1938 · as Ches

Theatre Royal
1943 · as Gordon Maxwell

The Frozen Limits
1939 · as Ches

Here Comes the Sun
1945 · as Ches Allen

A Fire Has Been Arranged
1935 · as Ches

O-Kay for Sound
1937 · as Ches

Gasbags
1941 · as Ches

Dreaming
1944 · as Ches

We’ll Smile Again
1942 · as Gordon Maxwell

Listen to Britain
1942 · as Self - Flanagan & Allen

Underneath the Arches
1937 · as Ches

They're Off
1933