| The Darker Side of Terror | 1979 | Prof. Meredith | TV Movie |
| Hart to Hart | 1979 | Stephen Harrison Edwards, Steven Edwards | TV Show |
| Blackout | 1978 | Richard Stafford | Movie |
| Cuibul salamandrelor | 1978 | The Boss | Movie |
| Oliver's Story | 1978 | Mr. Barrett | Movie |
| Slavers | 1978 | Hassan | Movie |
| Cruise Into Terror | 1978 | Dr. Isiah Bakkun | TV Movie |
| Battlestar Galactica | 1978 | Sire Uri | TV Show |
| The Pyjama Girl Case | 1977 | Inspector Timpson | Movie |
| The Uncanny | 1977 | Frank Richards | Movie |
| Seventh Avenue | 1977 | Douglas Fredericks | TV Show |
| Testimony of Two Men | 1977 | Jonas Witherby | TV Show |
| Fantasy Island | 1977 | Colonel James Weston | TV Show |
| The Hardy Boys/Nancy Drew Mysteries | 1977 | Dr. Orin Thatcher | TV Show |
| The Love Boat | 1977 | Peter Bradbury | TV Show |
| Aces High | 1976 | Brigadier Whale | Movie |
| The Last Tycoon | 1976 | Fleishacker | Movie |
| The Swiss Conspiracy | 1976 | Johann Hurtil | Movie |
| Look What's Happened to Rosemary's Baby | 1976 | Roman Castevet | TV Movie |
| Rich Man, Poor Man | 1976 | Duncan Calderwood | TV Show |
| Charlie's Angels | 1976 | Oliver Barrows | TV Show |
| Rich Man, Poor Man - Book II | 1976 | Duncan Calderwood | TV Show |
| Mayday at 40,000 Feet! | 1976 | Dr. Joseph Mannheim | TV Movie |
| From Sea to Shining Sea | 1976 | Judge Kinner | TV Show |
| Escape to Witch Mountain | 1975 | Aristotle Bolt | Movie |
| The Dead Don't Die | 1975 | Jim Moss | TV Movie |
| Ellery Queen | 1975 | Carson McKell | TV Show |
| Gold | 1974 | Hurry H. 'Pops' Hirschfeld | Movie |
| The Student Connection | 1974 | Dr. Roger Melli | Movie |
| The Big Game | 1973 | Prof. Pete Handley | Movie |
| Terror in the Wax Museum | 1973 | Harry Flexner | Movie |
| The House in Nightmare Park | 1973 | Stewart | Movie |
| Frogs | 1972 | Jason Crockett | Movie |
| The Thing with Two Heads | 1972 | Maxwell Kirshner | Movie |
| Cool Million | 1972 | Neil Fitzsimmons | TV Show |
| Embassy | 1972 | Ambassador | Movie |
| Black Noon | 1971 | Caleb Hobbs | TV Movie |
| Company of Killers | 1971 | George DeSalles | TV Movie |
| River of Gold | 1971 | Evelyn Rose | TV Movie |
| Columbo | 1971 | Arthur Kennicutt, Jarvis Goodland | TV Show |
| Love Story | 1970 | Oliver Barrett III | Movie |
| Daughter of the Mind | 1969 | Professor Samuel Hale Constable | TV Movie |
| Bracken's World | 1969 | Ray Milland - cameo | TV Show |
| Night Gallery | 1969 | Dr. Archibald Ravadon (segment "The Hand of Borgus Weems") | TV Show |
| The Name of the Game | 1968 | Jonathan Booker | TV Show |
| Hostile Witness | 1968 | Simon Crawford - Q.C. | Movie |
| Quick, Let's Get Married | 1964 | Mario Forni | Movie |
| X: The Man with the X-Ray Eyes | 1963 | Dr. James Xavier | Movie |
| The Silver Burro | 1963 | TV Movie |
| Panic in Year Zero! | 1962 | Harry Baldwin | Movie |
| The Premature Burial | 1962 | Guy Carrell | Movie |
| The Alfred Hitchcock Hour | 1962 | Dr. Howard Fenwick | TV Show |
| King of Kings | 1961 | Satan (voice, uncredited) | Movie |
| Alcoa Premiere | 1961 | Keith Briscoe | TV Show |
| The DuPont Show of the Week | 1961 | Investigator | TV Show |
| Markham | 1959 | Roy Markham | TV Show |
| The Safecracker | 1958 | Colley Dawson | Movie |
| The River's Edge | 1957 | Nardo Denning | Movie |
| Goodyear Theatre | 1957 | Binyon | TV Show |
| Suspicion | 1957 | Roy Markham | TV Show |
| High Flight | 1957 | Wing Commander Rudge | Movie |
| Lisbon | 1956 | Capt. Robert John Evans | Movie |
| Three Brave Men | 1956 | Joe DiMarco | Movie |
| A Man Alone | 1955 | Wes Steele | Movie |
| The Girl in the Red Velvet Swing | 1955 | Stanford White | Movie |
| Screen Directors Playhouse | 1955 | Markheim | TV Show |
| Dial M for Murder | 1954 | Tony Wendice | Movie |
| Let's Do It Again | 1953 | Gary Stuart | Movie |
| G.E. True Theater | 1953 | Caradoc Williams, John, Woodward | TV Show |
| Jamaica Run | 1953 | Patrick Fairlie | Movie |
| The Ray Milland Show | 1953 | Prof. Ray McNulty | TV Show |
| Bugles in the Afternoon | 1952 | Kern Shafter | Movie |
| Something to Live For | 1952 | Alan Miller | Movie |
| The Thief | 1952 | Allan Fields | Movie |
| The Ford Television Theatre | 1952 | District Attorney Peter Sloan | TV Show |
| Circle of Danger | 1951 | Clay Douglas | Movie |
| Close to My Heart | 1951 | Brad Sheridan | Movie |
| Rhubarb | 1951 | Eric Yeager | Movie |
| Schlitz Playhouse | 1951 | Harry Carstairs | TV Show |
| Night Into Morning | 1951 | Phillip Ainley | Movie |
| A Life of Her Own | 1950 | Steve Harleigh | Movie |
| A Woman of Distinction | 1950 | Prof. Alexander 'Alec' Stevenson | Movie |
| Copper Canyon | 1950 | Johnny Carter | Movie |
| Alias Nick Beal | 1949 | Nick Beal | Movie |
| It Happens Every Spring | 1949 | King Kelly, Prof. Vernon K. Simpson | Movie |
| Miss Tatlock's Millions | 1948 | Ray Milland (uncredited) | Movie |
| So Evil My Love | 1948 | Mark Bellis | Movie |
| The Big Clock | 1948 | George Stroud | Movie |
| Sealed Verdict | 1948 | Maj. Robert Lawson | Movie |
| California | 1947 | Jonathan Trumbo | Movie |
| Golden Earrings | 1947 | Col. Ralph Denistoun | Movie |
| The Imperfect Lady | 1947 | Clive Loring | Movie |
| The Trouble with Women | 1947 | Prof. Gilbert Sedley | Movie |
| Variety Girl | 1947 | Ray Milland | Movie |
| The Well Groomed Bride | 1946 | Lt. Dudley Briggs | Movie |
| Kitty | 1945 | Sir Hugh Marcy | Movie |
| The Lost Weekend | 1945 | Don Birnam | Movie |
| Lady in the Dark | 1944 | Charley Johnson | Movie |
| Ministry of Fear | 1944 | Stephen Neale | Movie |
| The Uninvited | 1944 | Roderick Fitzgerald | Movie |
| Till We Meet Again | 1944 | John | Movie |
| Forever and a Day | 1943 | Lt. William 'Bill' Trimble | Movie |
| The Crystal Ball | 1943 | Brad Cavanaugh | Movie |
| Reap the Wild Wind | 1942 | Stephen Tolliver | Movie |
| Star Spangled Rhythm | 1942 | Joe in Card-Playing Skit | Movie |
| The Major and the Minor | 1942 | Major Philip Kirby | Movie |
| Are Husbands Necessary? | 1942 | George Cugat | Movie |
| The Lady Has Plans | 1942 | Kenneth Clarence Harper | Movie |
| I Wanted Wings | 1941 | Jeff Young | Movie |
| Sullivan's Travels | 1941 | Near-Collision Man on Studio Street (uncredited) | Movie |
| Skylark | 1941 | Tony Kenyon | Movie |
| Arise, My Love | 1940 | Tom Martin | Movie |
| Irene | 1940 | Don Marshall | Movie |
| French Without Tears | 1940 | Alan Howard | Movie |
| The Doctor Takes a Wife | 1940 | Dr. Timothy Sterling | Movie |
| Untamed | 1940 | Dr. William Crawford | Movie |
| Beau Geste | 1939 | John Geste | Movie |
| Everything Happens at Night | 1939 | Geoffrey Thompson | Movie |
| Hotel Imperial | 1939 | Lieutenant Nemassy | Movie |
| Her Jungle Love | 1938 | Bob Mitchell | Movie |
| Men with Wings | 1938 | Scott Barnes | Movie |
| Say It in French | 1938 | Richard Carrington, Jr. | Movie |
| Tropic Holiday | 1938 | Ken Warren | Movie |
| Bulldog Drummond Escapes | 1937 | Captain Hugh C. 'Bulldog' Drummond' | Movie |
| Easy Living | 1937 | John Ball Jr. | Movie |
| Wise Girl | 1937 | John O'Halloran | Movie |
| Ebb Tide | 1937 | Robert Herrick | Movie |
| Wings Over Honolulu | 1937 | Lt. Samuel Gilchrist | Movie |
| Next Time We Love | 1936 | Tommy Abbott (as Raymond Milland) | Movie |
| The Big Broadcast of 1937 | 1936 | Bob Miller | Movie |
| The Jungle Princess | 1936 | Christopher Powell | Movie |
| Three Smart Girls | 1936 | Lord Michael Stuart | Movie |
| The Return of Sophie Lang | 1936 | Jimmy Dawson | Movie |
| The Gilded Lily | 1935 | Charles Gray (Lord Granton) | Movie |
| The Glass Key | 1935 | Taylor Henry | Movie |
| Four Hours to Kill! | 1935 | Carl Barrett | Movie |
| Alias Mary Dow | 1935 | Peter Marshall (as Raymond Milland) | Movie |
| Bolero | 1934 | Lord Robert Coray (as Raymond Milland) | Movie |
| Charlie Chan in London | 1934 | Neil Howard (as Raymond Milland) | Movie |
| We're Not Dressing | 1934 | Prince Michael (as Raymond Milland) | Movie |
| Many Happy Returns | 1934 | Ted Lambert | Movie |
| One Hour Late | 1934 | Tony St. John (as Raymond Milland) | Movie |
| Orders Is Orders | 1934 | Dashwood | Movie |
| The Mystery of Mr. X | 1934 | Forbes (uncredited) | Movie |
| Menace | 1934 | Freddie Bastion (as Raymond Milland) | Movie |
| This Is the Life | 1933 | Bob Travers | Movie |
| Polly of the Circus | 1932 | Church Usher, Sparring Partner (uncredited) | Movie |
| The Man Who Played God | 1932 | Eddie (uncredited) | Movie |
| -But the Flesh Is Weak | 1932 | Mr. Stewart - Party Guest (uncredited) | Movie |
| Payment Deferred | 1932 | James Medland | Movie |
| Ambassador Bill | 1931 | King Lothar | Movie |
| Blonde Crazy | 1931 | Joe Reynolds | Movie |
| Just a Gigolo | 1931 | Freddie | Movie |
| Strangers May Kiss | 1931 | 3rd Admirer (uncredited) | Movie |
| The Bachelor Father | 1931 | Geoffrey Trent | Movie |
| Bought! | 1931 | Charles Carter Jr. (as Raymond Milland) | Movie |
| Passion Flower | 1930 | Party Guest with Letter (uncredited) | Movie |
| Way for a Sailor | 1930 | Ship's Officer (uncredited) | Movie |
| Piccadilly | 1929 | Diner in Nightclub Scene (uncredited) | Movie |
| The Flying Scotsman | 1929 | Jim (as Raymond Milland) | Movie |
| The Informer | 1929 | Sharpshooter (uncredited) | Movie |
| The Lady from the Sea | 1929 | Tom Roberts (as Raymond Milland) | Movie |
| The Plaything | 1929 | Ian (as Raymond Milland) | Movie |
| Moulin Rouge | 1928 | Theater Patron (uncredited) | Movie |