Credits

• 2013 · Crystal Lake Memories: The Complete History of Friday the 13th as Self - 'Charles McCulloch'
• 2011 · Mysteria as Senator Mitchell
• 2011 · After the Wizard as Charles Samuel Williams
• 2010 · His Name Was Jason: 30 Years of Friday the 13th as Self
• 2009 · The Desperate as Dr. Blumenthal
• 2006 · Vic as Paul Marcus
• 2002 · Poolhall Junkies as Phillip
• 2001 · 4 Faces as Harlan Gregory / Carlo / Gerhardt / Daniel
• 2000 · Bruce Lee: A Warrior's Journey as Duke Paige (archive footage) (uncredited)
• 1999 · Batman Beyond as Winchell (voice)
• 1998 · Gary Cooper: The Face of a Hero as Self
• 1998 · Bruce Lee: The Intercepting Fist as Self
• 1996 · Superman: The Animated Series as Abin Sur / Guardian #1 (voice)
• 1994 · Spider-Man as Old Peter Parker / Old Spider-Man
• 1992 · Batman: The Animated Series as Charles Baxter (voice)
• 1991 · The Naked Gun 2½: The Smell of Fear as Dunwell
• 1990 · Beverly Hills, 90210 as
• 1989 · Friday the 13th Part VIII: Jason Takes Manhattan as Charles McCulloch
• 1988 · Judgement Day as Priest
• 1988 · Bonanza: The Next Generation as Mr. Dunson
• 1988 · Supercarrier as
• 1987 · Star Trek: The Next Generation as Ralph Offenhouse
• 1986 · Defenders of the Earth as
• 1986 · Matlock as
• 1986 · Defenders of the Earth: The Story Begins as
• 1984 · Crazy like a Fox as Dr. Donald Rafelman
• 1984 · City Killer as Lieutenant Walling
• 1984 · Murder, She Wrote as Lamar Bennett
• 1984 · Finder of Lost Loves as Frank Cunningham
• 1984 · Santa Barbara as C.C. Capwell
• 1983 · Dempsey as Tex Rickard
• 1982 · Knight Rider as Dr. Klaus Bergstrom
• 1982 · Knight Rider as Kleist
• 1982 · Hotel as
• 1982 · T. J. Hooker as
• 1981 · Dynasty as Andrew Laird
• 1980 · Conquest of the Earth as Colonel Briggs
• 1980 · Galactica 1980 as Colonel Briggs
• 1980 · Galactica 1980 as Col. Briggs
• 1980 · PSI Factor as Edgar Hamilton
• 1979 · Hart to Hart as
• 1979 · Hart to Hart as Arthur Horton
• 1979 · 240-Robert as
• 1979 · In Search of Historic Jesus as God (voice)
• 1979 · Blind Ambition as Robert Mardian
• 1979 · B. J. and the Bear as
• 1978 · Greatest Heroes of the Bible as King Bera
• 1978 · Vega$ as Grady
• 1978 · The Islander as Lt. Larkin
• 1978 · Sword of Justice as
• 1978 · Dallas as Maynard Anderson
• 1977 · The Incredible Hulk as Ellis Jordan
• 1977 · Dog and Cat as
• 1977 · Three's Company as Reverend Snow
• 1976 · Quincy, M.E. as
• 1976 · Charlie's Angels as Ken Atamien
• 1976 · Mallory: Circumstantial Evidence as John Shields
• 1976 · The Bionic Woman as
• 1975 · Wonder Woman as Dr. Crippin
• 1975 · Starsky & Hutch as Avery Schiller
• 1975 · Switch as Saunders
• 1975 · Baretta as
• 1974 · Petrocelli as Leo Roman
• 1974 · Nightmare at 43 Hillcrest as
• 1974 · Get Christie Love! as
• 1974 · The Six Million Dollar Man as Dr. Walter Ellis
• 1973 · Police Story as
• 1973 · Hawkins as Paul Forbes
• 1972 · The Streets of San Francisco as
• 1972 · Banacek as Andy Cole
• 1972 · Search as
• 1971 · Longstreet as
• 1971 · Cannon as
• 1971 · Yuma as Maj. Lucas
• 1970 · The Silent Force as Walter Garland
• 1970 · McCloud as
• 1970 · McCloud as Peter B. Clifford
• 1970 · House on Greenapple Road as Sal Gilman
• 1969 · My Friend Tony as
• 1968 · Lancer as Carl Bolton
• 1968 · Land of the Giants as Dr. Marad
• 1968 · Hawaii Five-O as Nick Morgan
• 1968 · The Name of the Game as Latimer
• 1968 · The Name of the Game as Robert Coates
• 1968 · How to Steal the World as Mr. Webb
• 1968 · For Singles Only as Gerald Pryor
• 1967 · Mannix as
• 1967 · Ironside as
• 1967 · Ironside as Daryll Frazer
• 1967 · The Invaders as Tom Wiley
• 1967 · The Invaders as Andrew Hatcher
• 1966 · Mission: Impossible as Gen. Stefano Aragas
• 1966 · Mission: Impossible as Dr. Hargreaves
• 1966 · Jericho as
• 1966 · Felony Squad as
• 1966 · Blue Light as
• 1966 · Agent for H.A.R.M. as Adam Chance
• 1965 · The F.B.I. as Maury Maddock
• 1965 · The F.B.I. as Hammond
• 1965 · The F.B.I. as John Parker
• 1965 · The F.B.I. as Vincent Preston Gray
• 1965 · The F.B.I. as Vince Manyan
• 1965 · The F.B.I. as Rudy Waldon
• 1965 · The F.B.I. as Johnny Sutton
• 1965 · The F.B.I. as William Braden
• 1965 · The Loner as
• 1965 · The Wild Wild West as Prince Gio
• 1965 · Dark Intruder as Robert Vandenburg
• 1964 · Profiles in Courage as Rawlins
• 1964 · Daniel Boone as Hawk
• 1964 · 12 O'Clock High as Col. Kendal Hunter
• 1963 · The Fugitive as Johnny
• 1963 · The Fugitive as Deputy Steel
• 1963 · The Outer Limits as Prof. Ian Fraser
• 1963 · The Outer Limits as Jefferson Rome
• 1962 · Combat! as Capt. Aptmeyer
• 1962 · Stoney Burke as
• 1962 · The Virginian as Johnny Madrid
• 1962 · The Virginian as Jack Wade
• 1962 · The Virginian as Al Keets
• 1962 · The Virginian as Wade
• 1961 · Ben Casey as
• 1961 · Cain's Hundred as Nicholas 'Nick' Cain
• 1961 · The Murder Men as Nick Cain
• 1961 · The Crimebusters as Nicholas Cain
• 1959 · The Twilight Zone as Robert Franklin
• 1959 · The DuPont Show with June Allyson as David
• 1959 · Bonanza as Richard Vardeman
• 1959 · The Black Orchid as Noble
• 1959 · Rawhide as Lloyd Mastic
• 1958 · Girls on the Loose as Police Lt. Bill Hanley (as Mark Richman)
• 1957 · The Strange One as Cadet Colonel Corger (as Mark Richman)
• 1956 · Friendly Persuasion as Gardner 'Gard' Jordan
• 1956 · Dick Powell's Zane Grey Theatre as Gar Durand
• 1955 · Playwrights '56 as
• 1955 · Alfred Hitchcock Presents as Officer Barrett
• 1955 · Alfred Hitchcock Presents as Mike
• 1955 · Gunsmoke as Norm Trainer
• 1954 · Middle of the Night as Jack
• 1951 · Schlitz Playhouse of Stars as Bat La Rue
• 1949 · Suspense as Young Officer
• 1948 · The Philco Television Playhouse as
• 1948 · The Philco Television Playhouse as Charles Blake
• 1948 · The Philco Television Playhouse as Jack
• 1948 · The Philco Television Playhouse as Tinian