Credits

• 2003 · The Royal as Hugh Hirst
• 2000 · Randall & Hopkirk (Deceased) as
• 1997 · Midsomer Murders as Charles Edmonton
• 1996 · No Angel: A Life of Marlene Dietrich as
• 1996 · Silent Witness as
• 1992 · Beautiful Lies as H.G. Wells
• 1992 · Virtual Murder as
• 1992 · Heartbeat as Harold Beecham
• 1992 · Sherlock Holmes: Incident at Victoria Falls as Lord Roberts
• 1991 · Preminger: Anatomy of a Filmmaker as Self (archive footage)
• 1988 · Olympus Force: The Key as
• 1985 · Jenny's War as Gen. Benjamin Cutler
• 1985 · The Last Place on Earth as Mr. Barnes
• 1983 · House of the Long Shadows as Sam Allyson
• 1982 · Doctor Who: Kinda as Sanders
• 1979 · Home Before Midnight as Geoffrey Steele
• 1978 · The Big Sleep as Commander Barker
• 1977 · No. 1 of the Secret Service as Arthur Loveday
• 1976 · Um Homem e o Cinema as Self (archive footage)
• 1975 · Bloodbath as Terence
• 1974 · The Next Scream You Hear as George Tulliver
• 1974 · Boy Dominic as Capt. Richard Bulman
• 1973 · Thriller as George Tulliver
• 1972 · Asylum as Walter
• 1970 · Dorian Gray as Basil Hallward
• 1968 · Subterfuge as Col. Victor Redmayne
• 1967 · The Love-Ins as Dr. Jonathan Barnett
• 1965 · The Battle of the Villa Fiorita as Darrell
• 1965 · Operation Crossbow as Wing Cmdr. Kendall
• 1965 · Coast of Skeletons as Harry Sanders
• 1963 · Death Drums Along the River as Inspector Harry Sanders
• 1963 · Doctor Who as Sanders
• 1963 · The Very Edge as Geoffrey Lawrence
• 1962 · The Longest Day as Maj. John Howard
• 1962 · The Boys as Victor Webster
• 1961 · The Hellions as Sam Hargis
• 1961 · Don't Bother to Knock as Bill Ferguson
• 1961 · The Long and the Short and the Tall as Sgt. 'Mitch' Mitchem
• 1960 · Never Let Go as John Cummings
• 1959 · Danger Within as Lieutenant Colonel David Baird
• 1958 · Intent to Kill as Dr. Bob McLaurin
• 1958 · The Naked Earth as Danny
• 1958 · Chase a Crooked Shadow as Williams, alias Ward McKenzie Prescott Jr.
• 1957 · Saint Joan as Dunois, Bastard of Orleans
• 1957 · Yangtse Incident: The Story of H.M.S. Amethyst as Lieutenant-Commander John Simon Kerans
• 1956 · D-Day the Sixth of June as Lt. Col. John Wynter
• 1956 · Marie-Antoinette Queen of France as Comte Axel von Fersen
• 1955 · The Virgin Queen as Sir Walter Raleigh
• 1955 · The Dam Busters as Wing Commander Guy Gibson, V.C., D.S.O., D.F.C.
• 1955 · A Man Called Peter as The Rev. Peter Marshall
• 1954 · The Secrets of the Bed as Capitaine Davidson
• 1953 · Wuthering Heights as Heathcliff
• 1953 · Rob Roy, The Highland Rogue as Rob Roy MacGregor
• 1953 · The Sword and the Rose as Charles Brandon
• 1952 · Venetian Bird as Edward Mercer
• 1952 · 24 Hours of a Woman's Life as the young man
• 1952 · The Story of Robin Hood and His Merrie Men as Robin Hood
• 1952 · Elstree Story as Himself
• 1951 · Lightning Strikes Twice as Richard Trevelyan
• 1951 · Flesh and Blood as Charles Cameron/Charles Cameron Sutherland
• 1950 · Portrait of Clare as Robert Hart
• 1950 · Stage Fright as Jonathan Cooper
• 1949 · The Interrupted Journey as John North
• 1949 · The Hasty Heart as Cpl. Lachlan "Lachie" MacLachlan
• 1949 · For Them That Trespass as Herbert Edward Logan
• 1948 · The Ed Sullivan Show as Self (archive footage)
• 1938 · A Yank at Oxford as Extra in Sporting Event (uncredited)
• 1937 · The Gap as Orderly (uncredited)
• 1937 · Good Morning, Boys! as Extra in crowd scene (uncredited)