Фільмографія

• 1969Avalanche
• 1969The Castle of Fu Manchu — Dr. Petrie
• 1968The Blood of Fu Manchu — Dr. Petrie
• 1968The Charge of the Light Brigade — Lt. Gen. Sir George Brown
• Man in a Suitcase
• 1967Smashing Time — Hall Porter (uncredited)
• 1967The Vengeance of Fu Manchu — Dr. Petrie
• Insurrection — General Sir John Maxwell
• 1966The Brides of Fu Manchu — Dr. Petrie
• 1966The Living Flame
• 1965The Face of Fu Manchu — Dr. Petrie
• 1964Man in the Middle
• Espionage — DDG
• 1963Tamahine — Major Spruce (as Howard Marion Crawford)
• The Saint — Portmore
• 1962Лоуренс Аравійський — Medical Officer
• 1962Найдовший день — Glider Doctor (uncredited)
• 1961Carry On Regardless — Wine-Tasting Organizer
• The Avengers — Geoffrey, Collins
• Danger Man — Gregori, Archer
• 1960Foxhole in Cairo — British Major
• Interpol Calling — Reg Couts, Peters
• 1959Life in Danger — Major Donald Peters
• 1959Model for Murder — Inspector Duncan
• 1959North West Frontier — Peter's Contact at Kalapur Station (uncredited)
• 1959Virgin Island — Prescott
• 1958Gideon's Day — The Chief
• 1958Next to No Time — Hobbs
• 1958Nowhere to Go — Mac Cameron, club owner
• 1958The Silent Enemy — Wing Commander
• 1957Ill Met by Moonlight
• 1957The Birthday Present — George Bates
• 1957The Man in the Sky — Ingrams
• 1956Reach for the Sky — 'Woody' Woodhall
• 1956The Silken Affair — Baggott
• Wire Service — McKenna
• Navy Log
• 1954Calling Scotland Yard: Falstaff's Fur Coat
• 1954Don't Blame the Stork — Fluffy Faversham
• 1954London's Country — Commentator
• 1954Paid to Kill — McGowan (as Howard Marion Crawford)
• Sherlock Holmes — Dr. Watson
• 1954West of Zanzibar — Wood
• 1953Gilbert Harding Speaking of Murder — Horatio Plunkett
• 1953Knights of the Round Table — Simon (uncredited)
• 1952His Excellency — Tea Shop Proprietor
• 1952Journey to the Sea — Bill (uncredited)
• 1952Plan for Coal
• 1952Where's Charley? — Sir Francis Chesney
• 1951Mr. Drake's Duck — Maj. Travers
• 1951The Man in the White Suit — Cranford
• 1950Scrapbook for 1933 — (voice)
• 1950Страх сцени — 1st Chauffeur (uncredited)
• 1949Man on the Run — 1st Paratrooper
• 1949The Hasty Heart — Tommy
• 1947The Phantom Shot — Sgt. Clapper
• 1941Freedom Radio — Kummer
• 1940Нічний поїзд до Мюнхена — Checkpoint Officer (uncredited)
• 1939The Spy in Black — German Officer in Kieler Hof Hotel
• 1936Secret Agent — Karl (uncredited)
• 1935Brown on Resolution — Max
• 1935Me and Marlborough — Minor Role
• 1935The Guv'nor — Undetermined Role

Ток-шоу, премії та інші появи (1)

• 1954Elizabethan Express — Self - Narrator (voice)