| 2020 | Acting: The First Six Lessons | Interviews |
| 2019 | Freeing “Trapped” | Self (archive footage) |
| 2002 | From Russia to Hollywood: The 100-Year Odyssey of Chekhov and Shdanoff | Self |
| 2000 | Meeting Daddy | Mr. Branson |
| 1998 | Mafia! | Vincenzo Cortino |
| 1996 | Sex, Censorship and the Silver Screen | Quote Reader |
| 1996 | The Deliverance of Elaine | Addison Hodges |
| 1996 | Second Noah | |
| 1995 | Oltre i limiti | Col. Kress |
| 1995 | Peter and the Wolf | Grandfather |
| 1995 | The Other Woman | Jacob |
| 1994 | Blown Away - Follia esplosiva | Max O'Bannon |
| 1994 | Assassinio di famiglia | Louis Thielman |
| 1993 | Hot Shots! 2 | President Thomas 'Tug' Benson |
| 1993 | Hearts of Hot Shots! Part Deux—A Filmmaker's Apology | |
| 1993 | Harts of the West | Jake Tyrell |
| 1993 | Mr. Bluesman | Bronski |
| 1992 | Tesoro, mi si è allargato il ragazzino | Clifford Sterling |
| 1992 | Earth and the American Dream | Reader (voice) |
| 1992 | Devlin | Bill Brennan |
| 1992 | The Making of High Noon | Self |
| 1991 | Hot Shots! | Admiral Benson |
| 1991 | In the Nick of Time | Santa Claus |
| 1991 | The Great Indian Wars 1840-1890 | |
| 1990 | Joe contro il vulcano | Samuel Harvey Graynamore |
| 1990 | Shining Time Station: 'Tis a Gift | Mr. Nicholas |
| 1990 | Leona Helmsley: The Queen of Mean | Harry Helmsley |
| 1990 | Capital News | Jonathan Turner |
| 1989 | Seinfeld | Izzy Mandelbaum |
| 1989 | Cugini | Vincent Kozinski |
| 1989 | Gente del Nord | William Wright |
| 1989 | Cross of Fire | Defense Atty. Eph Inman |
| 1988 | Tucker: un uomo e il suo sogno | Senator Homer Ferguson (uncredited) |
| 1988 | She Was Marked for Murder | Justin Matthews |
| 1987 | The Wild Pair | Col. Heser |
| 1986 | Weekend Warriors | Col. Archer |
| 1986 | The Thanksgiving Promise | Stewart Larson |
| 1986 | Dress Gray | Gen. Axel Rylander |
| 1985 | Nord e sud | Jefferson Davis |
| 1985 | Alice in Wonderland | White Knight |
| 1985 | Alice in Wonderland | The White Knight |
| 1985 | Night of 100 Stars II | Self |
| 1984 | Paper Dolls | Grant Harper |
| 1984 | George Washington | Caleb Quinn |
| 1983 | Grace Kelly | Jack Kelly |
| 1983 | All-Star Party for Frank Sinatra | Self |
| 1983 | Loving | Johnny Forbes |
| 1983 | Grandpa, Will You Run with Me? | Self - Sketch Performer |
| 1982 | L'aereo più pazzo del mondo... sempre più pazzo | Steven McCroskey |
| 1982 | Matt Houston | |
| 1982 | The Blue and the Gray | Ben Geyser |
| 1982 | Life of the Party: The Story of Beatrice | Johnny O'Reilly |
| 1981 | East of Eden | Samuel Hamilton |
| 1980 | L'aereo più pazzo del mondo | Steve McCroskey |
| 1980 | This Year's Blonde | Johnny Hyde |
| 1979 | Galactica: l'attacco dei cylon | Commander Cain |
| 1979 | L'isola della paura | Smithy |
| 1979 | Disaster on the Coastliner | Al Mitchell |
| 1979 | The Fifth Musketeer | Aramis |
| 1978 | Galactica | Commander Cain |
| 1978 | The Great Wallendas | Karl Wallenda |
| 1978 | Shimmering Light | Sean Pearse |
| 1978 | The Critical List | Dr. Dan J. Lassiter |
| 1977 | Love Boat | William Farnsworth |
| 1977 | Alla conquista del west | Orville Gant |
| 1977 | The Force of Evil | Dr. Yale Carrington |
| 1977 | Telethon | Matt Tallman |
| 1977 | Quinn Martin's Tales of the Unexpected | Dr. Yale Carrington |
| 1975 | Stowaway to the Moon | Charlie Englehardt |
| 1975 | Cop on the Beat | Joe Forrester |
| 1975 | Joe Forrester | Joe Forrester |
| 1974 | Tony Orlando and Dawn | Self |
| 1974 | Flick Flack | |
| 1973 | Sulle strade della California | |
| 1973 | Death Race | Gen. Ernst Beimler |
| 1973 | Trouble Comes to Town | Sheriff Porter Murdock |
| 1973 | Crime Club | Paul Cord |
| 1973 | Running Wild | Jeff Methune |
| 1972 | Haunts of the Very Rich | Dave Woodrough |
| 1972 | To Find a Man | Frank |
| 1971 | A Tattered Web | Sgt. Ed Stagg |
| 1971 | The Deadly Dream | Dr. Jim Hanley |
| 1971 | Do You Take This Stranger? | Steven Breck |
| 1970 | Lost Flight | Steve Bannerman |
| 1970 | The Sixth Column | Kyle |
| 1970 | San Francisco International Airport | Jim Conrad |
| 1970 | The Don Knotts Show | Self |
| 1969 | Lieto fine | Sam |
| 1969 | The Silent Gun | Brad Clinton |
| 1969 | Silent Night, Lonely Night | John Sparrow |
| 1968 | Here's Lucy | Paul Murray |
| 1968 | Attacco alla Costa di Ferro | Maj. James Wilson |
| 1968 | Igloo uno - Operazione delgado | Vic Powers |
| 1966 | Missione Impossibile | Anastas Poltroni aka Ted Carson |
| 1966 | I conquistatori degli abissi | Dr. Doug Standish |
| 1966 | CBS Playhouse | |
| 1965 | The Loner | William Colton |
| 1963 | Kraft Suspense Theatre | Mason Etheridge |
| 1963 | The Great Adventure | Wild Bill Hickok |
| 1962 | The Tonight Show Starring Johnny Carson | Self |
| 1962 | The Merv Griffin Show | Self |
| 1962 | The Lloyd Bridges Show | Adam Shepherd |
| 1961 | Kraft Mystery Theatre | |
| 1961 | Who Killed Julie Greer? | Joe Montana |
| 1960 | Checkmate | Howard Robert Gentry |
| 1959 | The DuPont Show with June Allyson | Capt. Anderson |
| 1958 | L'uomo del mare | Mike Nelson |
| 1958 | La divina | Dutch Seymour |
| 1958 | Westinghouse Desilu Playhouse | |
| 1957 | La cavalcata della vendetta | Captain George |
| 1956 | Il mago della pioggia | Noah Curry |
| 1956 | I racconti del West | Evan Tapper |
| 1956 | I racconti del West | Sam Fraser |
| 1956 | I racconti del West | Dundee |
| 1956 | I racconti del West | Lt. Sam Kenyon |
| 1956 | Wetbacks | Jim Benson |
| 1956 | Tragedy in a Temporary Town | Alec Beggs |
| 1956 | The Steve Allen Show | Self - Guest |
| 1955 | Wichita | Gyp Clements |
| 1955 | La meticcia di fuoco | Rex Moffet |
| 1955 | The Alcoa Hour | |
| 1954 | The Wonderful World of Disney | Stewart Larson |
| 1954 | Climax! | Jason Burrage |
| 1954 | Climax! | Joe Donner |
| 1954 | Climax! | Mark Gillis |
| 1954 | Climax! | Paul Bellamy |
| 1954 | Climax! | Jay Brackett |
| 1954 | Third Party Risk | Philip Graham |
| 1954 | Pride of the Blue Grass | Jim |
| 1953 | Nuvola nera | Jim Starbuck |
| 1953 | The Limping Man | Frank Prior |
| 1953 | La città dei fuorilegge | Gar Stanton |
| 1953 | The Kid from Left Field | Pete Haines |
| 1953 | Il gigante del Texas | Ben Trask |
| 1952 | Mezzogiorno di fuoco | Deputy Marshal Harvey Pell |
| 1952 | Gli avventurieri di Plymouth | Coppin |
| 1951 | Tre passi a nord | Frank Keeler |
| 1951 | La trappola degli indiani | Capt. Phillip Donlin |
| 1951 | The Whistle at Eaton Falls | Brad Adams |
| 1951 | Schlitz Playhouse of Stars | |
| 1950 | RX-M destinazione Luna | Colonel Floyd Graham |
| 1950 | L'urlo della folla | Jerry Slocum |
| 1950 | Colt .45 | Paul Donovan |
| 1950 | La torre bianca | Hein |
| 1950 | Robert Montgomery Presents | |
| 1949 | Trapped | Tris Stewart |
| 1949 | Home of the Brave | Finch |
| 1949 | Suspense | James |
| 1949 | Hideout | George Browning |
| 1949 | Occhio per occhio | Joel Collins |
| 1949 | Figlio del delitto | Virgil Cordts |
| 1949 | Mr. Whitney Had a Notion | Eli Whitney |
| 1949 | Breakdowns of 1949 | Self |
| 1948 | La luna sorge | Jerry Sykes |
| 1948 | Studio One | Henry Smith |
| 1948 | Studio One | Pike |
| 1948 | Studio One | Sam Dobie |
| 1948 | 16 Fathoms Deep | Ray Douglas |
| 1948 | Secret Service Investigator | Steve Mallory / Dan Redfern |
| 1947 | Gli invincibili | Lieut. Hutchins |
| 1947 | La donna di fuoco | Red Cates |
| 1947 | Thunderbolt | Pilot (voice) |
| 1947 | The Trouble with Women | Avery Wilson |
| 1946 | I conquistatori | Johnny Steele |
| 1946 | I predoni della città | Henry Deiser |
| 1946 | Miss Susie Slagle's | Silas Holmes |
| 1945 | Salerno ora X | Sgt. Ward |
| 1945 | Strange Confession | Dave Curtis |
| 1945 | Secret Agent X-9 | Phil Corrigan (Secret Agent X-9) |
| 1944 | Golden Globe Awards | Self - Audience Member |
| 1944 | L'ottava meraviglia | Aviator Captain (uncredited) |
| 1944 | Traditori | Frank |
| 1944 | Louisiana Hayride | Montague Price |
| 1944 | She's a Soldier Too | Charles Jones |
| 1944 | Saddle Leather Law | Paul Edwards |
| 1943 | Sahara | Fred Clarkson |
| 1943 | Ombre sul mare | 2nd Fireman (uncredited) |
| 1943 | The Heat's On | Andy Walker |
| 1943 | Passport to Suez | Fritz |
| 1943 | They Stooge to Conga | Telephone Customer #2 (uncredited) |
| 1943 | One Dangerous Night | Airline Gate Attendant (uncredited) |
| 1943 | The Crime Doctor’s Strangest Case | Jimmy Trotter |
| 1943 | City Without Men | Coast Guard Helmsman (uncredited) |
| 1943 | His Wedding Scare | Train Concuctor Charlie - Susie's 1st Husband |
| 1943 | Hail to the Rangers | Dave Kerlin |
| 1942 | Un evaso ha bussato alla porta | Donald Forrester (uncredited) |
| 1942 | Uragano all'alba | Young German Soldier (uncredited) |
| 1942 | Alias Boston Blackie | Bus Driver (uncredited) |
| 1942 | Counter-Espionage | Waiter/Spy (uncredited) |
| 1942 | Blondie Goes to College | Ben Dixon |
| 1942 | The Wife Takes a Flyer | German Sergeant |
| 1942 | Giorgio sei grande | Hans Muller |
| 1942 | Atlantic Convoy | Bert |
| 1942 | Flight Lieutenant | Cadet William "Bill" Robinson |
| 1942 | Canal Zone | Recruit Baldwin - Insurance Man |
| 1942 | Tramp, Tramp, Tramp! | Guard |
| 1942 | The Spirit of Stanford | Don Farrell (uncredited) |
| 1942 | Shut My Big Mouth | Skinny |
| 1942 | A Man's World | Brown |
| 1942 | Riders of the Northland | Alex |
| 1942 | Pardon My Gun | Henchman (uncredited) |
| 1942 | The Great Glover | |
| 1942 | North of the Rockies | Constable McDowell |
| 1941 | L'inafferrabile signor Jordan | Sloan (uncredited) |
| 1941 | Tu m'appartieni | Ski Patrol (uncredited) |
| 1941 | The Lone Wolf Takes a Chance | Johnny Baker |
| 1941 | La fidanzata di mio marito | Taxi Driver (uncredited) |
| 1941 | Three Girls About Town | Reporter |
| 1941 | Harvard Here I Come | Larry |
| 1941 | Honolulu Lu | Desk Clerk |
| 1941 | Otto giorni di vita | Blonde Officer |
| 1941 | Two Latins from Manhattan | Tommy Curtis |
| 1941 | The Son of Davy Crockett | Sammy |
| 1941 | The Royal Mounted Patrol | Hap Andrews |
| 1941 | Harmon of Michigan | Ozzie |
| 1941 | I Was a Prisoner on Devil's Island | Rene (uncredited) |
| 1940 | Passaggio a Nord-Ovest | Uniformed Soldier / Officer |
| 1936 | Dancing Feet | Young Man |
| 1936 | Freshman Love | College Boy (uncredited) |
