- Lux Video Theatre (1957) (TV series)
- The United States Steel Hour (1957) (TV series)
- Richard Diamond, Private Detective (TV series) - Danny Fortune
- Gunsmoke (1958) (TV series) - Marcus France
- The Chevy Mystery Show (1960) (TV series) - David Townsend
- Hawaiian Eye (1961) (TV series) - Maurice Clifford
- Maverick (1961) (TV series) - Roger Cushman
- Alfred Hitchcock Presents (1961) (TV series) - Mark Lansing
- General Electric Theater (1961) (TV series) - Alan Richards
- Lock-Up (1961) (TV series) - Vincent Gibson
- Wagon Train (1961) (TV series) - Dan Palmer
- Look in Any Window (1961) - Gareth Lowell
- Surfside 6 (1962) (TV series) - Val Morton
- Everglades (1962) (TV series) - Ron Fairburn
- 77 Sunset Strip (1962) (TV series) - Dick Arnador
- Bronco (1961–1962) (TV series) - Edward Miller
- The Dick Powell Show (1962) (TV series) - Roth
- Mister Magoo's Christmas Carol (1962) (TV) (voice) - Bob Cratchit
- The Chapman Report (1962) - Ted Dyson
- Hennesey (1962) (TV series) - Chaplain
- The Wide Country (1963) (TV series) - Jerry Manning
- FBI Code 98 (1963) - Walter Macklin
- Mr. Broadway (1964) (TV series) - Allan
- Famous Adventures of Mr. Magoo (1964) (TV series)
- The Lucy Show (1965) (TV Show)
- The Alfred Hitchcock Hour (1965) (TV series) - Arthur Mannix
- The Garry Moore Show (1966) (TV series) - Harrison Floy
- He & She (1967) (TV series) - Oscar North
- Coronet Blue (1967) (TV series) - Demier
- The Girl from U.N.C.L.E. (1967) (TV series) - Rock Mussin
- I Spy (1967) (TV series) - Nick Fleming
- Get Smart (1968) (TV series) - Mr. Bob
- Bewitched (1968–1970) (TV series) - Dinsdale, Rance
- That Girl (1969) (TV series) - Marty Hines
- Annie, the Women in the Life of a Man (1970) (TV)
- The Governor & J.J. (1970) (TV series) - Mark Ellison
- Matt Lincoln (1970) (TV series)
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- George M! (1970) (TV) - Jeremiah "Jerry" Cohan
- The Andersonville Trial (1970) (TV) - Otis Baker
- Cockeyed Cowboys of Calico County (1970) - Roger Hand
- Love, American Style (1970–1972) (TV series)
- Sarge (1971) (TV series) - John Michael O'Flaherty
- Bonanza (1971) (TV series) - Kevin O'Casey
- The Mary Tyler Moore Show (1971) (TV series) - Hal Baxter
- Bunny O'Hare (1971) - Lieutenant Greeley
- Alias Smith and Jones (1971) (TV series) - Harry Wagener
- Columbo: Murder by the Book (1971) (TV) - Ken Franklin
- The Powder Room (1971) (TV)
- Storefront Lawyers (1971) (TV series)
- Night Gallery (1971) (TV series) - Marius Davis
- The Mod Squad (1971) (TV series) - Perry Lerriko
- Mission: Impossible (1972) (TV series) - Orin Kerr
- Your Money or Your Wife (1972) (TV) - Josh Darwin, the TV Producer
- Banyon (1972) (TV series)
- Great Mysteries (1973) (TV series) - Pennington
- Barnaby Jones (1973) (TV series) - Craig Woodridge
- A Time for Love (1973) (TV) - Tom Pierson
- Sin, American Style (1974) (TV) - Danny Holliday
- The Phantom of Hollywood (1974) (TV) - Otto Vonner/Karl Vonner
- June Moon (1974) (TV) - Paul Sears
- Columbo: Publish or Perish (1974) (TV) - Riley Greenleaf
- Cannon (1974) (TV series) - General James O'Hara
- Hawaii Five-O (1975) (TV series) - Orrin Morwood
- Matt Helm (1975) (TV series) - Buckman
- Knuckle (1975) (TV)
- The Eiger Sanction (1975) - Miles Mellough
- Death Among Friends (1975) (TV) - Chico Donovan
- W.C. Fields and Me (1976) - John Barrymore
- Columbo: Now You See Him... (1976) (TV) - The Great Santini
- McCloud (1977) (TV series) - Lord Charles Bridges
- Benny and Barney: Las Vegas Undercover (1977) (TV) - Jules Rosen
- The Private Files of J. Edgar Hoover (1977) - Damon Runyon
- The Feather and Father Gang (1977) (TV series)
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