Credits

• 1977 · The Private Files of J. Edgar Hoover as Damon Runyon
• 1977 · Benny & Barney: Las Vegas Undercover as Jules Rosen
• 1976 · W.C. Fields and Me as John Barrymore
• 1975 · Matt Helm as Buckman
• 1975 · Knuckle as Patrick Delafield
• 1975 · The Eiger Sanction as Miles Mellough
• 1974 · The Phantom of Hollywood as Otto Vonner / Karl Vonner
• 1974 · June Moon as Paul Sears
• 1973 · A Time For Love as Tom Pierson
• 1973 · Barnaby Jones as Craig Woodridge
• 1972 · Your Money or Your Wife as Josh Darwin
• 1972 · Banyon as Grey Gloves
• 1972 · The Julie Andrews Hour as Self
• 1971 · Bunny O'Hare as Lieutenant Horace Greeley
• 1971 · Columbo as Ken Franklin
• 1971 · Columbo as Riley Greenleaf
• 1971 · Columbo as The Great Santini
• 1971 · Cannon as Gen. James O'Hara
• 1971 · Great Performances as Paul Sears
• 1971 · Alias Smith and Jones as Harry Wagoner
• 1970 · Night Gallery as Marius Davis (segment "The Last Laurel")
• 1970 · The Mary Tyler Moore Show as Hal Baxter
• 1970 · George M! as Jerry Cohan
• 1970 · The Andersonville Trial as Otis Baker
• 1970 · The Cockeyed Cowboys of Calico County as Roger Hand
• 1970 · Annie: The Women in the Life of a Man as Himself
• 1970 · McCloud as Lord Charles Bridges
• 1969 · Love, American Style as Chuck
• 1969 · Love, American Style as Fred
• 1968 · The Mod Squad as Perry Lemko
• 1968 · Hawaii Five-O as Morwood
• 1968 · Rowan & Martin's Laugh-In as Self
• 1967 · The Carol Burnett Show as Self - Guest / Various Characters
• 1967 · He & She as Oscar North
• 1967 · Coronet Blue as Spangler
• 1966 · Mission: Impossible as Orin Kerr
• 1966 · The Girl from U.N.C.L.E. as Rock Mussin
• 1966 · That Girl as Marty Haines
• 1965 · Get Smart as Mr. Bob
• 1964 · Bewitched as George Dinsdale
• 1964 · Bewitched as Rance Butler
• 1963 · FBI Code 98 as Walter Macklin
• 1962 · Mister Magoo's Christmas Carol as Bob Cratchit (voice)
• 1962 · The Lucy Show as Professor Zoorkin
• 1962 · The Tonight Show Starring Johnny Carson as Self
• 1962 · The Merv Griffin Show as Self - Guest Host
• 1962 · The Merv Griffin Show as Self
• 1962 · The Alfred Hitchcock Hour as Arthur Mannix
• 1961 · Everglades as
• 1961 · Look in Any Window as Gareth Lowell
• 1960 · Surfside 6 as
• 1960 · The Chevy Mystery Show as David Townsend
• 1959 · Hawaiian Eye as
• 1959 · Lock-Up as Vincent Gibson
• 1959 · Bonanza as Kevin O'Casey
• 1959 · The Bell Telephone Hour as Self
• 1958 · 77 Sunset Strip as
• 1958 · Bronco as
• 1957 · Maverick as
• 1957 · Richard Diamond, Private Detective as Danny Fortune
• 1956 · Tony Awards as Self - Presenter
• 1955 · Alfred Hitchcock Presents as Mark Lansing
• 1955 · Gunsmoke as Marcus France
• 1953 · General Electric Theater as Alan Richards
• 1950 · Lux Video Theatre as Dr. Frederick Steele
• 1950 · Lux Video Theatre as Denis
• 1948 · The Ed Sullivan Show as Self