| Movie | 1969 | Topaz | Michael Nordstrom | |
| Movie | 2000 | Charlie's Angels | Charlie (voice) | |
| Movie | 1955 | The Trouble with Harry | Sam Marlowe | |
| Movie | 1943 | Destination Tokyo | Sparks | |
| Movie | 1988 | Scrooged | Lew Hayward | |
| Movie | 1978 | Cruise Into Terror | Rev. Charles Mather | |
| Movie | 1966 | Madame X | Clay Anderson | |
| Movie | 1964 | Kitten with a Whip | David Stratton | |
| Movie | 1953 | The Glass Web | Don Newell | |
| Movie | 1999 | We Wish You a Merry Christmas | Mr. Ryan (voice) | |
| Movie | 1952 | The Captive City | James "Jim" C. Austin | |
| Movie | 1979 | ...And Justice for All | Judge Henry T. Fleming | |
| Movie | 1967 | In Cold Blood | Alvin Dewey | |
| Movie | 1953 | Escape from Fort Bravo | Captain Marsh | |
| Movie | 1975 | The Deadly Tower | Lt. Elwood Forbes | |
| Movie | 1967 | A Bell for Adano | Maj. Victor P. Joppolo | |
| Movie | 1969 | The Happy Ending | Fred Wilson | |
| Movie | 1951 | American Harvest | Self - Narrator (voice) | |
| Movie | 1956 | The Ambassador's Daughter | Sgt. Danny Sullivan | |
| Movie | 1988 | Happy Birthday, Bob: 50 Stars Salute Your 50 Years with NBC | Self | |
| Movie | 2011 | Beatles Stories | Self (archive footage) | |
| Movie | 1953 | It Happens Every Thursday | Bob MacAvoy | |
| Movie | 1956 | Everything But the Truth | Ernie Miller | |
| Movie | 1964 | See How They Run | Martin Young | |
| Movie | 1976 | Amelia Earhart | G.P. Putnam | |
| Movie | 1977 | Tail Gunner Joe | Paul Cunningham | |
| Movie | 1990 | Opposites Attract | Rex Roper | |
| Movie | 1977 | Goodbye & Amen | The American Ambassador | |
| Movie | 1977 | Never Con a Killer | E.J. Valerian | |
| Movie | 1987 | On Fire | Joe Leary, Sr. | |
| Movie | 1982 | Mysterious Two | He | |
| Movie | 1978 | With This Ring | Gen. Albert Harris | |
| Movie | 1973 | The Letters | Paul Anderson | |
| Movie | 1971 | Murder Once Removed | Dr. Ron Wellesley | |
| Movie | 1985 | Night of 100 Stars II | Self | |
| Movie | 1959 | Dubrowsky | Wladia | |
| Movie | 1968 | Shadow on the Land | Gen. Wendell Bruce | |
| Movie | 1986 | Kraft Salutes the George Burns 90th Birthday Special | Self | |
| Movie | 1974 | Terror on the 40th Floor | Dan Overland | |
| Movie | 1983 | George Burns Celebrates 80 Years in Show Business | Self - Host | |
| Movie | 2001 | 'The Trouble with Harry' Isn't Over | Self | |
| Movie | 1974 | Cry Panic | David Ryder | |
| Movie | 1973 | Lisa, Bright and Dark | William Schilling | |
| Movie | 2003 | Charlie's Angels: Full Throttle | Charles 'Charlie' Townsend (voice) | |
| Movie | 1959 | What Makes Sammy Run? | Al Manheim | |
| Movie | 1981 | Sizzle | Mike Callahan | |
| Movie | 1943 | Northern Pursuit | Corporal (uncredited) | |
| Movie | 1949 | Arson, Inc. | Race Track Aannouncer (voice, uncredited) | |
| Movie | 1996 | Shirley Maclaine: Kicking Up Her Heels | Self | |
| Movie | 1948 | The Things People Want | Don | |
| Movie | 1994 | Universal Studios Florida: Experience the Magic of Movies | Self - Host | |
| Movie | 1979 | The Muppets Go Hollywood | Self | |
| Movie | 1974 | The Healers | Dr. Robert Kier | |
| Movie | 1992 | Universal Studios Hollywood: A Universe of Cinemagic | Himself | |
| Movie | 1978 | The Users | Reade Jamieson | |
| Movie | 1985 | Disneyland's 30th Anniversary Celebration | Self | |
| Movie | 1980 | A Time for Miracles | Postulator | |
| Movie | 1982 | Night of 100 Stars | Self | |
| Movie | 1952 | 10,000 Horses Singing | Marv Payne | |
| Movie | 2002 | Did you leave us, Blake? | Self | |
| TV Show | 1963 | Kraft Suspense Theatre | Jerry Wilson / John Williams | 1 |
| TV Show | 1996 | E! True Hollywood Story | | 1 |
| TV Show | 1981 | Dynasty | Blake Carrington | 220 |
| TV Show | 1976 | Charlie's Angels | Charles Townsend (voice) | 115 |
| TV Show | 1962 | The Merv Griffin Show | Self | 1 |
| TV Show | 1948 | Studio One | | 7 |
| TV Show | 1948 | The Ed Sullivan Show | Self | 5 |
| TV Show | 1953 | General Electric Theater | Bentley Gregg | 1 |
| TV Show | 1985 | The Colbys | | 4 |
| TV Show | 1951 | Hallmark Hall of Fame | Captain Fisby | 1 |
| TV Show | 1955 | Alfred Hitchcock Presents | Kim Stanger | 1 |
| TV Show | 1969 | To Rome with Love | Michael Endicott | 48 |
| TV Show | 1992 | The Powers That Be | William Powers | 15 |
| TV Show | 1965 | Run for Your Life | Spencer Holt | 1 |
| TV Show | 1957 | Bachelor Father | Bentley Gregg | 157 |
| TV Show | 1973 | Police Story | | 1 |
| TV Show | 1951 | Schlitz Playhouse of Stars | | 1 |
| TV Show | 1954 | Climax! | Joe Sullivan | 1 |
| TV Show | 1948 | The Philco Television Playhouse | | 2 |
| TV Show | 1966 | ABC Stage 67 | Self | 1 |
| TV Show | 1949 | Suspense | David | 1 |
| TV Show | 1950 | Robert Montgomery Presents | Dr. Frederick Steele | 1 |
| TV Show | 1956 | Dick Powell's Zane Grey Theatre | CSA Lt. David Marr | 1 |
| TV Show | 1955 | Playwrights '56 | | 1 |
| TV Show | 1975 | Medical Story | | 1 |
| TV Show | 1965 | The John Forsythe Show | Major John Foster | 29 |
| TV Show | 1949 | Lights Out | | 3 |
| TV Show | 1982 | Christmas in Washington | Self | 1 |
| TV Show | 1949 | The Emmy Awards | Self | 3 |
| TV Show | 1961 | Kraft Mystery Theatre | | 1 |
| TV Show | 1951 | Schlitz Playhouse of Stars | Hayden Chart | 1 |
| TV Show | 1951 | Schlitz Playhouse of Stars | Peter Bronson | 1 |
| TV Show | 1951 | Schlitz Playhouse of Stars | Dr. John Carter | 1 |
| TV Show | 1998 | Hollywood Squares | Self - Panelist | 1 |
| TV Show | 1950 | The Bob Hope Show | Self | 1 |
| TV Show | 1950 | The Jack Benny Program | John Forsythe | 1 |
| TV Show | 1963 | Kraft Suspense Theatre | Maj. William 'Bill' Livingston | 1 |
| TV Show | 1957 | The Lux Show | Self | 1 |
| TV Show | 1982 | Wogan | Self | 1 |
| TV Show | 1955 | Miss Universe | Host | 1 |
| TV Show | 1951 | Hallmark Hall of Fame | | 1 |
| TV Show | 1948 | Studio One | Maj. Peter Brook | 1 |
| TV Show | 1948 | Studio One | Capt. Sam MacKenzie | 1 |
| TV Show | 1948 | Studio One | Marv Payne | 1 |
| TV Show | 1948 | Studio One | James Rexham | 1 |
| TV Show | 1948 | Studio One | Judd | 1 |
| TV Show | 1963 | Bob Hope Presents the Chrysler Theatre | Charlie King | 1 |
| TV Show | 1948 | Studio One | Pete Maynard | 1 |
| TV Show | 1993 | Denver Clan ohne Maske | Self | 2 |
| TV Show | 1951 | Hallmark Hall of Fame | William Schilling | 1 |
| TV Show | 1954 | Climax! | Adam Barclay | 1 |
| TV Show | 1954 | Climax! | Graham Johnson | 1 |
| TV Show | 1954 | Climax! | Tommy Jordan | 1 |
| TV Show | 1959 | The Bell Telephone Hour | Self - Host | 1 |
| TV Show | 1951 | The Red Skelton Show | Millionaire's Son | 1 |
| TV Show | 1947 | Kraft Television Theatre | | 2 |
| TV Show | 1977 | The Love Boat | Burt Gardner | 2 |
| TV Show | 1961 | The Mike Douglas Show | Self - Co-Host | 5 |
| TV Show | 1951 | Schlitz Playhouse of Stars | Tony Preston | 1 |
| TV Show | 1954 | Climax! | Frank Colby | 1 |
| TV Show | 1961 | The Mike Douglas Show | Self | 6 |
| TV Show | 1962 | The Tonight Show Starring Johnny Carson | Self | 3 |
| TV Show | 1956 | Tony Awards | Self - Presenter | 1 |
| TV Show | 1949 | Suspense | | 3 |
| TV Show | 1949 | Suspense | Wiltshire | 1 |
| TV Show | 1991 | Dynasty: The Reunion | Blake Carrington | 2 |
| TV Show | 1944 | Golden Globe Awards | Self - Nominee | 2 |
| TV Show | 1962 | The Alfred Hitchcock Hour | Michael Barnes | 1 |
| TV Show | 1944 | Golden Globe Awards | Self | 2 |
| TV Show | 1994 | Gargoyles | Pat Doyle (voice) | 1 |
