Filmography60 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2019 | Once Upon a Time... in HollywoodMovie | Sam Wanamaker | 69 |
| 2018 | The BBQMovie | Carver | 68 |
| 2018 | Show Me the Movie!Series | Self | 68 |
| 2014 | Turkey ShootMovie | The President | 64 |
| 2005 | Dynasty: The Making of a Guilty PleasureMovie | Aaron Spelling | 55 |
| 2005 | The SaviourMovie | Pastor | 55 |
| 2001 | Crocodile Dundee in Los AngelesMovie | Curator | 51 |
| 2000 | On the BeachMovie | U.S. President | 50 |
| 1999 | FarscapeSeries | Dr. Adrian Walker | 49 |
| 1999 | Where Are They Now?Series | Self | 49 |
| 1999 | The Lost WorldSeries | Phil Dillon | 49 |
| 1998 | 13 Gantry RowMovie | Russell | 48 |
| 1997 | Paradise RoadMovie | Marty Merritt | 47 |
| 1997 | 20,000 Leagues Under the SeaSeries | Saxon | 47 |
| 1994 | The Damnation of Harvey McHughSeries | Corky | 44 |
| 1993 | FraudsMovie | Detective Simms | 43 |
| 1993 | Irresistible ForceMovie | Lieutenant Nash | 43 |
| 1993 | The FedsSeries | Milton Morehouse | 43 |
| 1989 | Trouble in ParadiseMovie | Arthur | 39 |
| 1988 | Mission: ImpossibleSeries | Woodward | 38 |
| 1986 | The Flying DoctorsSeries | Richard Hull | 36 |
| 1986 | The ChallengeSeries | Dennis Conner | 36 |
| 1986 | Cyclone TracySeries | Harry Nelson | 36 |
| 1984 | Murder, She WroteSeries | Todd Worthy | 34 |
| 1984 | Crazy like a FoxSeries | James Daniel Parrish | 34 |
| 1982 | The Adventures of PollyannaMovie | Reverend Tull | 32 |
| 1982 | The TempestMovie | Ferdinand | 32 |
| 1982 | Richard IIMovie | Hotspur | 32 |
| 1981 | Falcon CrestSeries | D.A. Martin Deering | 31 |
| 1981 | The Manions of AmericaSeries | Padraic O'Manion / Sean O'Manion | 31 |
| 1980 | Magnum, P.I.Series | Clarke Troubshaw | 30 |
| 1980 | The Martian ChroniclesSeries | Commander Arthur Black | 30 |
| 1979 | SupertrainSeries | David | 29 |
| 1978 | DallasSeries | Bill Johnson | 28 |
| 1978 | The Amazing Spider-ManSeries | Peter Parker | 28 |
| 1978 | Spider-Man Strikes BackMovie | Peter Parker / Spider-Man | 28 |
| 1977 | The Love BoatSeries | Paul Stockwood | 27 |
| 1977 | The Hardy Boys / Nancy Drew MysteriesSeries | — | 27 |
| 1977 | Spider-ManMovie | Peter Parker / Spider-Man | 27 |
| 1977 | Logan's RunSeries | Hal 14 | 27 |
| 1977 | The Fantastic JourneySeries | Tye | 27 |
| 1977 | Eight Is EnoughSeries | — | 27 |
| 1976 | Law of the LandMovie | Brad Jensen | 26 |
| 1974 | PetrocelliSeries | — | 24 |
| 1974 | Double SolitaireMovie | Peter | 24 |
| 1973 | SuperdadMovie | Roger Rhinehurst | 23 |
| 1973 | Outrage!Movie | Ron Werner | 23 |
| 1973 | Catch-22Movie | Nately | 23 |
| 1972 | The WaltonsSeries | — | 22 |
| 1972 | SkyjackedMovie | Peter Lindner | 22 |
| 1971 | Been Down So Long It Looks Like Up to MeMovie | Agneau | 21 |
| 1971 | Mr. and Mrs. Bo Jo JonesMovie | Evan Clark | 21 |
| 1969 | The Brady BunchSeries | Doug Simpson | 19 |
| 1968 | Hawaii Five-OSeries | Calvin Lyle | 18 |
| 1967 | Soldier in LoveMovie | Young John | 17 |
| 1965 | The Sound of MusicMovie | Friedrich von Trapp | 15 |
| 1963 | Lord of the FliesMovie | Robert | 13 |
| 1955 | GunsmokeSeries | Britt | 5 |
| 1951 | Hallmark Hall of FameSeries | Young John | 1 |
| 1948 | The Ed Sullivan ShowSeries | Self | — |