Credits
- 1999 · Inferno as Pop Reynolds
- 1998 · The King of Queens as Mickey
- 1995 · Ned and Stacey as Nate
- 1994 · ER as Army Armstrong
- 1991 · Bed & Breakfast as Amos
- 1990 · Steve McQueen: Man on the Edge as Self (archive footage)
- 1989 · The Cellar as T.C. van Houten
- 1988 · China Beach as
- 1987 · Wiseguy as
- 1987 · Amerika as Will Milford
- 1986 · Who Is Julia? as The Commentator
- 1986 · Matlock as
- 1985 · Moonlighting as Judge
- 1982 · St. Elsewhere as
- 1982 · It Takes Two as
- 1982 · Life of the Party: The Story of Beatrice as Beatrice's Father
- 1981 · Falcon Crest as Paolo Bellini
- 1981 · Halloween II as Dr. Mixter
- 1981 · Code Red as
- 1980 · Friendly Fire as Mr. Hamilton
- 1980 · Gideon's Trumpet as 2nd Supreme Court Justice
- 1979 · Strangers: The Story of a Mother and Daughter as Mr. Meecham
- 1979 · Backstairs at the White House as Navy Secretary
- 1978 · A Family Upside Down as Mr. Case
- 1977 · Our Town as Joe Stoddard
- 1977 · How the West Was Won as
- 1976 · Guardian of the Wilderness as Abraham Lincoln
- 1976 · Quincy, M.E. as
- 1976 · Charlie's Angels as Mr. Harkins
- 1976 · The Last of Mrs. Lincoln as Ninnian Edwards
- 1976 · The New Daughters of Joshua Cabe as The Judge
- 1976 · The Bionic Woman as
- 1975 · Babe as Dr. Tatum
- 1975 · Strange New World as Sirus
- 1974 · The Rockford Files as Manny Tolan
- 1974 · Little House on the Prairie as
- 1974 · Petrocelli as
- 1974 · The Parallax View as Commission Spokesman #2
- 1974 · The Story of Pretty Boy Floyd as Mr. Suggs
- 1974 · The Stranger Who Looks Like Me as Mr. Gilbert
- 1974 · Manhunter as James Barrett
- 1974 · The Six Million Dollar Man as Jim Elgin
- 1973 · Key West as Prescott Webb
- 1973 · Linda as Police Chief Vernon
- 1973 · Doc Elliot as
- 1972 · Kung Fu as
- 1972 · The Streets of San Francisco as
- 1972 · M*A*S*H as
- 1972 · The Waltons as
- 1972 · Search as
- 1972 · The Rookies as
- 1972 · Sixteen as Father
- 1972 · Probe as Aaron Johannes (uncredited)
- 1971 · A Howling in the Woods as Bud Henshaw
- 1971 · Cannon as Farmer
- 1971 · My Old Man's Place as Sheriff Coleman
- 1971 · Alias Smith and Jones as
- 1970 · Night Gallery as The Sheriff
- 1970 · The Traveling Executioner as Stanley Mae
- 1970 · The Immortal as
- 1970 · The Naked Zoo as Harry Golden
- 1970 · The Andersonville Trial as Board of Military Judges
- 1970 · My Sweet Charlie as Treadwell
- 1969 · The D.A.: Murder One as Dr. Ellis Anders
- 1969 · The Gypsy Moths as Stand Owner
- 1968 · The Mod Squad as
- 1967 · Mannix as Dr. Crow
- 1967 · The Guns of Will Sonnett as
- 1967 · Judd for the Defense as
- 1967 · Cimarron Strip as
- 1967 · Ironside as
- 1967 · The Invaders as George Grundy
- 1967 · The Invaders as Gen. Jonathan Blaine
- 1966 · The Sand Pebbles as Harris
- 1966 · The Time Tunnel as President Abraham Lincoln
- 1966 · Johnny Tiger as Sam Tiger
- 1966 · Gunpoint as Tom Emerson
- 1965 · The F.B.I. as Harry Fortier
- 1965 · The F.B.I. as Greer
- 1965 · The F.B.I. as Burke
- 1965 · The F.B.I. as John Prysock
- 1965 · Get Smart as
- 1965 · The Wild Wild West as Admiral Hammond
- 1965 · The Big Valley as Colin Murdoch
- 1965 · Lost in Space as The President
- 1965 · Run for Your Life as Gen. Andrew Douglas
- 1965 · Lost in Space - No Place to Hide as The President
- 1964 · Profiles in Courage as Bird
- 1964 · Daniel Boone as Matawa
- 1964 · Daniel Boone as John Gist
- 1964 · Daniel Boone as Jonas Wilkes
- 1964 · Voyage to the Bottom of the Sea as U.S. President
- 1963 · Kings of the Sun as The chief
- 1963 · Mr. Novak as Eason
- 1963 · The Richard Boone Show as
- 1963 · The Fugitive as Lt. C. Wynn
- 1963 · The Fugitive as Oliver Corman
- 1963 · The Outer Limits as D.A. Thomas Coyle
- 1962 · 40 Pounds of Trouble as Judge
- 1962 · Stoney Burke as
- 1962 · The Virginian as Sheriff Sam Roebuck
- 1962 · The Virginian as Marshal Floyd Buckman
- 1962 · The Virginian as County Prosecutor
- 1962 · The Virginian as Sam Claypool
- 1962 · The Virginian as Sheriff
- 1961 · Window on Main Street as
- 1961 · Dr. Kildare as Dr. Andy Meadows
- 1961 · Dr. Kildare as Dr. Walter Untermeyer
- 1961 · Claudelle Inglish as Reverend Armstrong
- 1961 · Cain's Hundred as Capt. Martin Amherst
- 1961 · Ada as Speaker
- 1961 · Two Rode Together as Rev. Henry Clegg
- 1961 · Parrish as John Donati (uncredited)
- 1961 · Dead to the World as Congressman Keach
- 1960 · Flaming Star as Doc Phillips
- 1960 · Route 66 as
- 1960 · Checkmate as Paul O'Neill
- 1960 · The Tall Man as
- 1960 · The New Girl as Mr. Dennis
- 1959 · The Detectives as
- 1959 · Bonanza as Sam Kane
- 1959 · Bonanza as Capt. Arnholt
- 1959 · Bonanza as Judge Taylor
- 1959 · Bonanza as Col. Tyson
- 1959 · Bonanza as Gabriel Bingham
- 1959 · Bonanza as Judge Josh Wyllit
- 1959 · Bonanza as Judge Simms
- 1959 · John Paul Jones as Lt. Simpson
- 1959 · The Last Mile as Red Kirby
- 1959 · Rawhide as Sheriff
- 1959 · Rawhide as Broken Bow
- 1959 · Rawhide as Col. Hart
- 1958 · The Badlanders as Yuma Prison Warden
- 1957 · Perry Mason as Russell W. Durham
- 1957 · Perry Mason as Harry Trilling
- 1957 · Perry Mason as Senator Randolph Cartwell
- 1957 · Perry Mason as Dr. Fisher
- 1957 · Have Gun, Will Travel as
- 1957 · 3:10 to Yuma as Bisbee Marshal
- 1955 · Gunsmoke as Tate
- 1955 · Gunsmoke as Hode Embry
- 1955 · Gunsmoke as Storekeeper
- 1954 · The Human Jungle as Jones
- 1954 · Lassie as
- 1951 · Hallmark Hall of Fame as Menteith
- 1951 · Hallmark Hall of Fame as 2nd Supreme Court Justice
- 1951 · The Adventures of Kit Carson as
- 1950 · Perfect Strangers as Ernest Craig (uncredited)
- 1950 · Robert Montgomery Presents as Rev. C.K. Dickey
- 1949 · White Heat as Zuckie
- 1948 · Studio One as Sam Forrest
- Future · Das 6 Millionen Dollar Girl as Jim Elgin