| Series
| Role
| Episode
| Airdate
|
| Dr. Kildare | Chris McKenna | 4x28 - The Time Buyers | April 8, 1965
|
| Run for Your Life | Harry Blunt | 1x18 - The Night of the Terror | January 31, 1966
|
| Run for Your Life | Collier Johnson | 2x13 - Tears from a Glass Eye | December 12, 1966
|
| Mannix | Ramon Verona | 1x06 - The Cost of a Vacation | October 21, 1967
|
| Tarzan (1966) | Hank | 2x09 - Hotel Hurricane | November 10, 1967
|
| The Wild Wild West | Captain Dansby | 3x12 - The Night of the Legion of Death | November 24, 1967
|
| Ironside | Joe Varona | 1x14 - Girl in the Night | December 21, 1967
|
| Mission: Impossible | Raymond Barret | 3x11 - The Freeze | December 22, 1968
|
| The Wild Wild West | Captain Zaboff | 4x22 - The Night of the Cossacks | March 21, 1969
|
| Mission: Impossible | Lou Merrick | 4x08 - Mastermind | November 23, 1969
|
| O'Hara, U.S. Treasury | Johnny Guizet | 1x18 - Operation: Dorias | February 4, 1972
|
| Mission: Impossible | Joel Morgan | 7x10 - Ultimatum | November 18, 1972
|
| Marcus Welby, M.D. | | 4x21 - The Working Heart | February 13, 1973
|
| The Facts of Life | Sal | 3x23 - Jo's Cousin | April 14, 1982
|
| Cheers | Leo Metz | 1x02 - Sam's Women | October 7, 1982
|
| Taxi | Angie Banta | 5x09 - Travels with My Dad | November 25, 1982
|
| Hill Street Blues | Paul Grogan | 3x09 - A Hair of the Dog | November 25, 1982
|
| Hill Street Blues | Paul Grogan | 3x10 - Phantom of the Hill | December 2, 1982
|
| Magnum, P.I. | Wilson Arthur MacLeish | 3x13 - Of Sound Mind | January 6, 1983
|
| Gimme a Break | mayor | 2x15 - The Centerfold (2) | January 27, 1983
|
| Hill Street Blues | Judge Paul Grogan | 3x16 - Moon Over Uranus: the Final Legacy | February 10, 1983
|
| Amanda's | Johnson | 1x02 - You Were Meant for Me | February 17, 1983
|
| Alice | Frank | 8x11 - Tommy Goes Overboard | January 1, 1984
|
| The Golden Girls | Jake Smollens | 2x22 - Diamond in the Rough | March 21, 1987
|
| Airwolf | Tont Santini | 4x23 - Flying Home | July 31, 1987
|
| Murder, She Wrote | Ed Bellamy | 4x12 - Who Threw the Barbitals in Mrs. Fletcher's Chowder? | January 3, 1988
|
| Empty Nest | Leonard | 1x09 - Harry's Friend | December 3, 1988
|
| Murder, She Wrote | Ned Jenks | 7x17 - The Prodigal Father | March 10, 1991
|
| Murder, She Wrote | William Mahaffy | 10x07 - A Killing in Cork | November 21, 1993
|
| The X-Files | Jim Parker | 1x19 - Shapes | April 1, 1994
|
| The Outer Limits (1995) | Senator | 2x10 - Worlds Apart | March 22, 1996
|
| Sliders | Ben Greenfeld | 2x10 - Greatfellas | May 31, 1996
|
| The X-Files | General Francis | 4x07 - Musings of a Cigarette-Smoking Man | November 17, 1996
|
| The Outer Limits (1995) | General James Eiger | 3x13 - Dead Man's Switch | April 4, 1997
|
| Millennium | Peter Dumont | 1x20 - Broken World | May 2, 1997
|
| The Sentinel | Dominik Lazar | 3x05 - The Inside Man | October 15, 1997
|
| Millennium | Sheriff Fritz Neuenschwander | 3x05 - ...Thirteen Years Later | October 30, 1998
|
| Century City | Jason Sisto | 1x01 - Pilot | March 16, 2004
|
| Battlestar Galactica (2003) | Dr. Cottle | 1x04 - Act of Contrition | November 8, 2004
|
| Battlestar Galactica (2003) | Dr. Cottle | 1x06 - Litmus | November 22, 2004
|
| Battlestar Galactica (2003) | Dr. Cottle | 1x07 - Six Degrees of Separation | November 29, 2004
|
| Supernatural | Mr. Shaw | 1x02 - Wendigo | September 20, 2005
|
| Psych | Judge Horace Leland | 1x12 - Cloudy Chance of Murder | February 9, 2007
|
| Human Target (2010) | | 1x01 - Pilot | January 17, 2010
|