| År | Titel | Roll | Noter |
|---|
| 1959 | Armstrong Circle Theater | Berks | Avsnitt:The Jailbreak |
| 1960 | Armstrong Circle Theater | Tony Newman | Avsnitt:Positive Identification |
| 1961 | Defenders, TheThe Defenders | Al Rogart | Avsnitt:Perjury |
| 1961 | Great Ghost Tales | William Wilson | Avsnitt:William Wilson |
| 1961 | Shannon | Joey Nolan | Avsnitt:The Big Fish |
| 1961 | Cain's Hundred | Tom Nugent | Avsnitt:King of the Mountain |
| 1961 | Route 66 | Roman | Avsnitt:The Newborn |
| 1961 | Route 66 | Arnie | Avsnitt:Birdcage on My Foot |
| 1961 | Naked City | Lewis Nunda | Avsnitt:A Hole in the City |
| 1962 | Naked City | L. Francis 'Frank' Childe | Avsnitt:The One Marked Hot Gives Cold |
| 1962 | Naked City | Johnny Meigs | Avsnitt:Five Cranks for Winter... Ten Cranks for Spring |
| 1962 | Naked City | Barney Sonners | Avsnitt:Torment Him Much and Hold Him Long |
| 1963 | Untouchables, TheThe Untouchables | Eddie Moon | Avsnitt:Blues for a Gone Goose |
| 1963 | Defenders, TheThe Defenders | Luke Jackson | Avsnitt:Metamorphosis |
| 1963 | Route 66 | Lee Winters | Avsnitt:Suppose I Said I Was the Queen of Spain |
| 1963 | Twilight Zone, TheThe Twilight Zone | Charley Parkes | Avsnitt:Miniature |
| 1963 | Virginian, TheThe Virginian | Johnny Keel | Avsnitt:The Golden Door |
| 1963 | Stoney Burke | Joby Pierce | Avsnitt:Joby |
| 1963 | Arrest and Trial | Morton Ware | Avsnitt:The Quality of Justice |
| 1963 | Fugitive, TheThe Fugitive | Eric Christian | Avsnitt:Never Wave Goodbye: Part 1 |
| 1964 | Kraft Suspense Theatre | Harvey Farnsworth | Avsnitt:Portrait of an Unknown Man |
| 1964 | Outer Limits, TheThe Outer Limits | Louis Mace | Avsnitt:The Chameleon |
| 1964 | Outer Limits, TheThe Outer Limits | Adam Ballard | Avsnitt:The Inheritors |
| 1965 | Voyage to the Bottom of the Sea | Zar | Avsnitt:The Invaders |
| 1965 | Combat! | Karl | Avsnitt:The Enemy |
| 1965 | Defenders, TheThe Defenders | Bill Andrews | Avsnitt:Only a Child |
| 1965 | Fugitive, TheThe Fugitive | Leslie Sessions | Avsnitt:Brass Ring |
| 1966 | Bob Hope Presents the Chrysler Theatre | Frank Reeser | Avsnitt:Guilty or Not Guilty |
| 1966 | F.B.I., TheThe F.B.I. | Johnny Albin | Avsnitt:The Scourge |
| 1966 | Combat! | Peter Halsman | Avsnitt:Cry for Help |
| 1966 | Hawk | Dick | Avsnitt:The Theory of the Innocent Bystander |
| 1966 | Felony Squad | Albie Froehlich | Avsnitt:Death of a Dream |
| 1966 | Shane | Tom Gary | Avsnitt:Poor Tom's A-Cold |
| 1966 | T.H.E. Cat | Scorpio | Avsnitt:Crossing at Destino Bay |
| 1966 | Fame Is the Name of the Game | Eddie Franchot | TV-film |
| 1967 | Time Tunnel, TheThe Time Tunnel | Raul Nimon | Avsnitt:Chase Through Time |
| 1967 | Cimarron Strip | Joe Wyman | Avsnitt:The Roarer |
| 1967 | Wild Wild West, TheThe Wild Wild West | Dr. Horace Humphries | Avsnitt:The Night of the Falcon |
| 1967 | F.B.I., TheThe F.B.I. | Ernie Milden | Avsnitt:The Executioners: Part 1 |
| 1967 | T.H.E. Cat | Laurent | Avsnitt:The Long Chase |
| 1967 | Combat! | Michel | Avsnitt:The Partisan |
| 1967 | Cosa Nostra, Arch Enemy of the FBI | Ernie Milden | TV-film |
| 1968 | CBS Playhouse | Dr. Margolin | Avsnitt:The People Next Door |
| 1968 | Run for Your Life | Richard Fletcher | Avsnitt:The Killing Scene |
| 1968 | Judd, for the Defense | Raymond Cane | Avsnitt:Square House |
| 1968 | F.B.I., TheThe F.B.I. | Joseph Troy | Avsnitt:The Harvest |
| 1968 | Flesh and Blood | Howard | TV-film |
| 1969 | Mod Squad, TheThe Mod Squad | Matt Jenkins | Avsnitt:Keep the Faith, Baby |
| 1969 | F.B.I., TheThe F.B.I. | Gerald Wilson | Avsnitt:Nightmare Road |
| 1979 | Ike | Dwight D. Eisenhower | TV-miniserie |
| 1980 | Ike: The War Years | Dwight D. Eisenhower | TV-film |
| 1983 | The Terry Fox Story | Bill Vigars | TV-film
Nominerad—Cable ACE Award for Best Actor in a Dramatic Presentation |
| 1989 | Lonesome Dove | Augustus "Gus" McCrae | TV-miniserie
Golden Globe Award for Best Actor - Miniseries or Television Film
Nominerad—Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Movie |
| 1992 | Stalin | Josef Stalin | TV-film
Golden Globe Award for Best Actor - Miniseries or Television Film
Nominerad—Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Movie |
| 1996 | The Man Who Captured Eichmann | Adolf Eichmann | TV-film
Nominerad—Cable ACE Award for Best Actor in a Movie or Miniseries
Nominerad—Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Movie
Nominerad—Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Miniseries or Television Movie |
| 1998 | Saturday Night Live | Olika roller | Avsnitt:Garth Brooks |
| 2005 | American Experience | Berättaren | Avsnitt:The Carter Family: Will the Circle Be Unbroken |
| 2006 | Broken Trail | Prentice "Print" Ritter | TV-miniserie; även exekutiv producent
New York International Independent Film and TV Festival Gold Medal for Best Performance
Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Movie
Primetime Emmy Award for Outstanding Miniseries
Nominerad—Golden Globe Award for Best Actor - Miniseries or Television Film
Nominerad—Golden Nymph for Best Performance by an Actor in a Miniseries
Nominerad—Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Miniseries or Television Movie |
| 2012 | Hemingway & Gellhorn | General Petrov | TV-film |
