Stephen Lewis

Stephen Lewis, credited early in his career as Stephen Cato, was an English actor, comedian, director, screenwriter, playwright. He was best known for his work with Joan Littlewood, including writing the play Sparrers Can't Sing, which was subsequently turned into the movie Sparrows Can't Sing, and his regular roles in the sitcoms On the Buses and Last of the Summer Wine, both of which utilised his morose features to comedic effect.
Cast

Mutiny on the Buses
Inspector Blakey
The Great Kandinsky
Herbert

Hitler: The Comedy Years
Cyril Blake (archive footage) (uncredited)

On the Buses
Inspector Blakey

Holiday on the Buses
Inspector Blakey

Adventures of a Plumber's Mate
B.A. Crapper

Last Of The Summer Wine: 30 Years Of Laughs
Self (archive)

Adventures of a Taxi Driver
Doorman

Personal Services
Mr. Dunkley

The McGuffin
Sopwith

A Prize of Arms
Military Policeman

The Krays
Policeman

Staircase
Jack

Sparrows Can't Sing
Caretaker

This Is Love
Policeman

The Frightened City
Alf's 1st Thug

The Magnificent Seven Deadly Sins
Jarvis (segment "Wrath")

Some Will, Some Won't
Police Constable Arthur

The Last Remake of Beau Geste
Henshaw

The Best of the Adventures
Doorman / B.A. Crapper (archive footage) (uncredited)

Negatives
Dealer