| Insurrection | 1966 | General Sir John Maxwell | TV Show |
| The Face of Fu Manchu | 1965 | Dr. Petrie (as Howard Marion Crawford) | Movie |
| The Winston Affair | 1964 | Major Poole (as Howard Marion Crawford) | Movie |
| Detective | 1964 | Chief Constable Waldron | TV Show |
| Secret Agent | 1964 | Cmdr. Collinson / Gregori / Archer | TV Show |
| Life in Danger | 1964 | Major Peters (as Howard Marion Crawford) | Movie |
| Tamahine | 1963 | Major Spruce (as Howard Marion Crawford) | Movie |
| Espionage | 1963 | D.D.G. | TV Show |
| Chips with Everything | 1963 | Wing-Commander | TV Movie |
| Lawrence of Arabia | 1962 | Medical Officer (as Howard Marion Crawford) | Movie |
| The Longest Day | 1962 | Glider Doctor (uncredited) | Movie |
| The Saint | 1962 | Portmore | TV Show |
| Zero One | 1962 | McHale | TV Show |
| Carry on Regardless | 1961 | Wine-Tasting Organizer (as Howard Marion Crawford) | Movie |
| The Avengers | 1961 | Collins / Geoffrey / Brigadier Goddard | TV Show |
| Foxhole in Cairo | 1960 | British Major (as Howard Marion Crawford) | Movie |
| Maigret | 1960 | Juror | TV Show |
| The Cheaters | 1960 | Quinlan | TV Show |
| Last Train, The | 1960 | Miller (as Howard Marion Crawford) | Short Film |
| Suspense | 1960 | Voal | TV Show |
| North West Frontier | 1959 | Peter's Contact at Kalapur Station (uncredited) | Movie |
| Our Virgin Island | 1959 | Prescott | Movie |
| Interpol Calling | 1959 | Peters / Reg Couts | TV Show |
| Model for Murder | 1959 | Inspector Duncan | Movie |
| Gideon of Scotland Yard | 1958 | The Chief | Movie |
| Nowhere to Go | 1958 | Mack Cameron (uncredited) | Movie |
| The Silent Enemy | 1958 | Wing Commander (as Howard Marion Crawford) | Movie |
| Next to No Time | 1958 | Hobbs (as H. Marion Crawford) | Movie |
| Doomsday for Dyson | 1958 | Air Vice Marshal | TV Movie |
| Decision Against Time | 1957 | Ingrams (as Howard Marion Crawford) | Movie |
| Don Kikhot | 1957 | Sancho Panza (English version, voice, uncredited) | Movie |
| Night Ambush | 1957 | British Port Officer (uncredited) | Movie |
| The Birthday Present | 1957 | Bates (as Howard Marion Crawford) | Movie |
| The Tyburn Case | 1957 | Peter Shilling (as Howard Marion Crawford) | Short Film |
| Othello | 1956 | Othello (English version, voice) | Movie |
| Reach for the Sky | 1956 | 'Woody' Woodhall (as Howard Marion Crawford) | Movie |
| The Silken Affair | 1956 | Baggott | Movie |
| Whack-O! | 1956 | Sir Gerald Turnbull | TV Show |
| Wire Service | 1956 | McKenna | TV Show |
| Adventure Theater | 1956 | Horatio Plunkett | TV Show |
| ITV Play of the Week | 1955 | Governor | TV Show |
| Navy Log | 1955 | Flying Officer Beauchamp | TV Show |
| The Rainbow Jacket | 1954 | Travers (as Howard Marion Crawford) | Movie |
| Sherlock Holmes | 1954 | Dr. John H. Watson | TV Show |
| Paid to Kill | 1954 | Cyrus McGowan (as Howard Marion Crawford) | Movie |
| West of Zanzibar | 1954 | Wood (as Howard Marion Crawford) | Movie |
| Don't Blame the Stork | 1954 | Fluffy Faversham | Movie |
| Gilbert Harding Speaking of Murder | 1954 | Horatio Plunkett | Movie |
| Calling Scotland Yard: Falstaff's Fur Coat | 1954 | Horatio Plunkett | Short Film |
| Knights of the Round Table | 1953 | Simon (uncredited) | Movie |
| Top of the Form | 1953 | Dickson | Movie |
| Where's Charley? | 1952 | Sir Francis Chesney | Movie |
| His Excellency | 1952 | Tea Shop Proprietor (as Howard Marion Crawford) | Movie |
| Journey to the Sea | 1952 | Bill - Driver (uncredited) | Short Film |
| Plan for Coal | 1952 | Narrator (voice) | Short Film |
| The Man in the White Suit | 1951 | Cranford (as Howard Marion Crawford) | Movie |
| Mr Drake's Duck | 1951 | Maj. Travers | Movie |
| Stage Fright | 1950 | 1st Chauffeur (uncredited) | Movie |
| The Hasty Heart | 1949 | Tommy (as Howard Crawford) | Movie |
| The Singing Princess | 1949 | Narrator (English version, voice) | Movie |
| Man on the Run | 1949 | 1st Paratrooper (as Howard Marion Crawford) | Movie |
| Berkeley Square | 1948 | HRH The Duke of Cumberland, KG | TV Movie |
| The Phantom Shot | 1947 | Sgt. Clapper | Movie |
| Notorious Gentleman | 1945 | Coldstream Guardsman (uncredited) | Movie |
| A Voice in the Night | 1941 | Kummer (as H. Marion-Crawford) | Movie |
| Night Train to Munich | 1940 | SS Officer Checking Passes (uncredited) | Movie |
| The Spy in Black | 1939 | German Officer in Kieler Hof Hotel (uncredited) | Movie |
| 13 Men and a Gun | 1938 | Kramer | Movie |
| Secret Agent | 1936 | Karl (uncredited) | Movie |
| Music Hath Charms | 1936 | Bill Sheridan (uncredited) | Movie |
| Born for Glory | 1935 | Max | Movie |
| Mister Hobo | 1935 | Undetermined Role (uncredited) | Movie |
| Me and Marlborough | 1935 | Minor Role (uncredited) | Movie |
