Credits

• 2003 · Hell's Highway: The True Story of Highway Safety Films as Rellik (archive footage)
• 1990 · As Aventuras do General Custer as Gen. Terry
• 1984 · Airwolf as The Admiral
• 1981 · Spider-Man: The Dragon's Challenge as J. Jonah Jameson
• 1978 · Spider-Man Strikes Back as J. Jonah Jameson
• 1978 · The Amazing Spider-Man as J. Jonah Jameson
• 1977 · The Girl in the Empty Grave as Jedediah Partridge
• 1977 · Tail Gunner Joe as Drew Pearson
• 1975 · Ellery Queen as Eben Wright
• 1974 · Police Woman as Dr. Foreman
• 1974 · Winter Kill as Harvey
• 1974 · The Six Million Dollar Man as The Sheriff
• 1973 · The Six Million Dollar Man: Wine, Women and War as Capt. Walker
• 1973 · Barnaby Jones as Mr. Strand
• 1972 · The Streets of San Francisco as Capt. Rudy Olsen
• 1972 · M*A*S*H as Gen. Maynard M. Mitchell
• 1972 · Temperatures Rising as Lowell
• 1971 · McMillan & Wife as Military Judge
• 1971 · Nichols as Slade
• 1971 · Columbo as Dr. Westrum
• 1971 · Private Duty Nurses as Dr. Sutton
• 1970 · Wild Women as Col. Donahue
• 1970 · Nancy as Uncle Everett McPherson
• 1969 · Love, American Style as
• 1968 · Hawaii Five-O as Hugh Tilles
• 1968 · The Legend of Custer as General Alfred Terry
• 1967 · The Guns of Will Sonnett as Sheriff Devon
• 1967 · Custer as Alfred H. Terry
• 1967 · The Reluctant Astronaut as Cervantes
• 1966 · The Third Killer as Mr. Rellik
• 1966 · The Silencers as Big O associate (uncredited)
• 1965 · Across the River as Policeman
• 1964 · Fate Is the Hunter as Proctor
• 1964 · Bewitched as Frank Stephens
• 1963 · Captain Newman, M.D. as Lt. Col. M.B. Larrabee
• 1963 · A New Kind of Love as Bertram Chalmers
• 1963 · The Fugitive as Murphy
• 1963 · The Outer Limits as Gen. Maximillian R. Hart
• 1963 · Arrest and Trial as Judge James Shaw
• 1963 · Wall of Noise as Dave McRaab
• 1962 · The Lucy Show as Robert F. Simon
• 1962 · Saints and Sinners as Dave Tabak
• 1962 · The Spiral Road as Dr. Martens
• 1962 · The Man Who Shot Liberty Valance as Handy Strong
• 1961 · Ricochet as Colonel
• 1961 · The Defenders as Dr. Ernest Montgomery
• 1961 · The Wizard of Baghdad as shamadin
• 1960 · Tess of the Storm Country as Mr. Graves
• 1960 · The Facts of Life as Motel Clerk
• 1960 · The Andy Griffith Show as Mr. Crawford
• 1960 · Pay or Die! as Police Commissioner
• 1959 · Operation Petticoat as Captain J.B. Henderson
• 1959 · The Last Angry Man as Lyman Gattling
• 1959 · The Untouchables as Cummings
• 1959 · The Untouchables as Police Chief Towers
• 1959 · The Twilight Zone as Harvey
• 1959 · Johnny Ringo as Sam
• 1959 · Law of the Plainsman as Frank Keller
• 1959 · Bonanza as George Thurston
• 1959 · Face of Fire as The Judge
• 1959 · Compulsion as Police Lt. Johnson
• 1959 · Black Saddle as Judge McKinney
• 1959 · Rawhide as Mackie
• 1958 · The Buccaneer as Capt. Brown
• 1958 · Lawman as Pa Beason
• 1958 · The Nine Lives of Elfego Baca as Deputy Sherrif
• 1958 · The Texan as Vance
• 1958 · The Texan as Sheriff Will Crandall
• 1958 · Steve Canyon as Col. Hampton
• 1958 · Gunman's Walk as Sheriff Harry Brill
• 1957 · Perry Mason as Edward Bannister
• 1957 · Perry Mason as Anthony M. Beldon
• 1957 · Wagon Train as Jay Thorton
• 1957 · Have Gun, Will Travel as Samuel Keel
• 1957 · Have Gun, Will Travel as Morgan Gibbs
• 1957 · The Last Tycoon as Brady
• 1957 · Spring Reunion as Harry Brewster
• 1957 · Edge of the City as Mr. George Nordmann
• 1956 · Bigger Than Life as Dr. Norton
• 1956 · The Rack as Law Officer
• 1956 · The First Traveling Saleslady as Cal
• 1956 · The Catered Affair as Mr. Joe Halloran
• 1956 · Never Say Goodbye as Dr. Kenneth Evans
• 1956 · The Benny Goodman Story as Papa Dave Goodman
• 1955 · The Court-Martial of Billy Mitchell as Admiral Gage
• 1955 · The Alcoa Hour as Mr. Price
• 1955 · Alfred Hitchcock Presents as Sgt. Halloran
• 1955 · The Girl in the Red Velvet Swing as Stage Manager (as Robert Simon)
• 1955 · Gunsmoke as Ben Stancil
• 1955 · Gunsmoke as Jesse
• 1955 · Gunsmoke as Pa Grilk
• 1955 · Gunsmoke as Shell Tucker
• 1955 · Gunsmoke as Colonel Amos Jessup
• 1955 · Gunsmoke as Jonah
• 1955 · Foxfire as Ernest Tyson
• 1955 · 5 Against the House as Old Guard (uncredited)
• 1955 · Chief Crazy Horse as Jeff Mantz
• 1954 · The Wonderful World of Disney as Ed Morgan
• 1954 · The Wonderful World of Disney as Deputy Marshal Ed Morgan
• 1954 · Studio 57 as Gen. Elijah Carruthers
• 1954 · Rogue Cop as Ackerman
• 1954 · The Black Dakotas as U.S. Marshal Whit Collins (as Robert Simon)
• 1954 · Roogie's Bump as Boxey
• 1953 · A Long Time Till Dawn as Lt. Case
• 1951 · Bright Victory as Psychiatrist
• 1950 · Where the Sidewalk Ends as Insp. Nicholas Foley (uncredited)
• 1947 · Kraft Television Theatre as