| Series
| Role
| Episode
| Airdate
|
| Columbo | Coroner Cliff Anderson | 5x03 - Identity Crisis | November 2, 1975
|
| Cannon | Alex Shuller | 5x11 - Wedding March | November 19, 1975
|
| Police Woman | Torelli | 2x20 - Generation of Evil | February 10, 1976
|
| The Rockford Files | Orin Wilson | 3x04 - Feeding Frenzy | October 15, 1976
|
| The Bionic Woman | King Kusari | 3x20 - Long Live the King | March 25, 1978
|
| Lou Grant | Anthony Leone | 2x04 - Mob | October 23, 1978
|
| The Rockford Files | Dumas | 5x22 - A Different Drummer | April 13, 1979
|
| Quincy, M.E. | | 5x03 - By the Death of a Child | October 4, 1979
|
| Lou Grant | Arnold Zinner | 3x04 - Charlatan | October 15, 1979
|
| The Greatest American Hero | | 2x01 - The Two-Hundred-Mile-an-Hour Fastball | November 4, 1981
|
| The Greatest American Hero | | 2x19 - The Good Samaritan | March 31, 1982
|
| T.J. Hooker | Detective Chuck Taylor | 2x16 - Vengeance Is Mine | February 5, 1983
|
| The A-Team | Colonel Sanchez | 2x14 - In Plane Sight | January 3, 1984
|
| Cheers | Marvin | 3x05 - Sam Turns the Other Cheek | November 1, 1984
|
| Scarecrow and Mrs. King | Pierce | 2x06 - Brunettes Are In | November 12, 1984
|
| Hill Street Blues | Leon DeGaulle | 5x11 - Last Chance Salon | December 13, 1984
|
| Cagney & Lacey | Ronelli | 5x13 - Act of Conscience | January 13, 1986
|
| L.A. Law | Attorney Neil Robertson | 1x06 - Slum Enchanted Evening | October 31, 1986
|
| L.A. Law | Attorney Neil Robertson | 1x07 - Raiders of the Lost Bark | November 7, 1986
|
| Hunter | Doctor Schneider | 3x18 - A Child Is Born | March 14, 1987
|
| Designing Women | Mel | 2x08 - Cruising | November 16, 1987
|
| L.A. Law | Attorney Neil Robertson | 2x20 - Chariots of Meyer | May 5, 1988
|
| L.A. Law | Neil Robertson | 4x19 - Bang... Zoom... Zap | April 26, 1990
|
| Matlock | Tom O'Hare | 5x19 - The Trial (1) | February 19, 1991
|
| Matlock | Tom O'Hare | 5x20 - The Trial (2) | February 26, 1991
|
| Jake and the Fatman | | 5x05 - I Could Write a Book | November 13, 1991
|
| Melrose Place | Dr. Stanley Levin | 1x11 - A Promise Broken | September 30, 1992
|
| Melrose Place | Dr. Stanley Levin | 1x18 - A Melrose Place Christmas | December 16, 1992
|
| Walker, Texas Ranger | Paco Cruz | 2x14 - On Deadly Ground | January 29, 1994
|
| Melrose Place | Dr. Stanley Levin | 2x22 - With This Ball and Chain | February 23, 1994
|
| Melrose Place | Dr. Stanley Levin | 2x27 - Psycho Therapy | April 20, 1994
|
| Melrose Place | Dr. Stanley Levin | 2x29 - Imperfect Strangers | May 4, 1994
|
| Melrose Place | Dr. Stanley Levin | 2x30 - Devil with the G-String On | May 11, 1994
|
| Melrose Place | Dr. Stanley Levin | 2x31 - Till Death Do Us Part (1) | May 18, 1994
|
| Melrose Place | Dr. Stanley Levin | 3x01 - I Am Curious Melrose | September 12, 1994
|
| ER | Howard Davis | 1x24 - Love Among the Ruins | May 4, 1995
|
| Babylon 5 | Urza Jaddo | 2x17 - Knives | May 18, 1995
|
| Sisters | Captain Smiley | 6x04 - One Fine Day | October 21, 1995
|
| Sisters | Captain Smiley | 6x13 - The Man That Got Away | January 13, 1996
|
| Profiler | Colonel Deems | 1x03 - Unholy Alliance | October 19, 1996
|
| Mr. and Mrs. Smith | Elias Stone | 1x09 - The Space Flight Episode | November 8, 1996
|
| JAG | Col. Matthew O'Hara | 2x01 - We the People | January 3, 1997
|
| Walker, Texas Ranger | George Vickers | 6x02 - Iceman | October 4, 1997
|
| The Practice | | 2x14 - The Pursuit of Dignity | January 3, 1998
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 2x09 - Secrets | August 21, 1998
|
| Stargate SG-1 | Jacob Carter/Selmak | 2x11 - The Tok'ra (1) | October 2, 1998
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 2x12 - The Tok'ra (2) | October 9, 1998
|
| Chicago Hope | Donald Malloy | 5x06 - Viagra-Vated Assault | November 4, 1998
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 2x20 - Show and Tell | February 26, 1999
|
| Ally McBeal | Harry Wah | 2x17 - Civil War | April 5, 1999
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 3x02 - Seth | July 2, 1999
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 3x12 - Jolinar's Memories (1) | October 22, 1999
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 3x13 - The Devil You Know (2) | October 29, 1999
|
| Party of Five | Unknown | 6x20 - Great Expectations | April 18, 2000
|
| Stargate SG-1 | General Jacob Carter/Selmak | 4x12 - Tangent | September 15, 2000
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 4x14 - The Serpent's Venom | September 29, 2000
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 4x22 - Exodus (1) | February 23, 2001
|
| Stargate SG-1 | Jacob Carter | 5x01 - Enemies (2) | June 29, 2001
|
| The West Wing | Leonard Wallace | 3x13 - Night Five | February 6, 2002
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 5x15 - Summit (1) | March 22, 2002
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 5x16 - Last Stand (2) | March 29, 2002
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 5x21 - Meridian | May 10, 2002
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 6x03 - Descent | June 21, 2002
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 6x09 - Allegiance | August 9, 2002
|
| The Practice | Attorney Horace Wright | 7x13 - Character Evidence | February 10, 2003
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 6x19 - The Changeling | February 28, 2003
|
| The District | Mr. Parras | 3x18 - Bloodlines | April 12, 2003
|
| 24 | General Gratz | 2x19 - Day 2: 2:00AM - 3:00AM | April 15, 2003
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 7x03 - Fragile Balance | June 20, 2003
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 7x11 - Evolution (1) | August 22, 2003
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 7x12 - Evolution (2) | January 9, 2004
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 7x13 - Grace | January 16, 2004
|
| Stargate SG-1 | Jacob Carter/Sel'mac | 7x16 - Death Knell | February 6, 2004
|
| The District | Mr. Parras | 4x19 - Passing Time | April 17, 2004
|
| Stargate SG-1 | Jacob Carter/Selmak | 8x16 - Reckoning (1) | February 25, 2005
|
| Stargate SG-1 | Jacob Carter/Selmak | 8x17 - Reckoning (2) | March 4, 2005
|
| Stargate SG-1 | Jacob Carter/Selmak | 8x18 - Threads | March 11, 2005
|
| Crossing Jordan | Diego Artega | 4x18 - Sanctuary | April 24, 2005
|
| CSI | Sylvano Fatelli | 6x21 - Rashomama | April 27, 2006
|
| CSI: NY | Captain Gerrard | 3x11 - Raising Shane | November 29, 2006
|
| CSI: NY | Deputy Inspector Stanton Gerrard | 3x19 - A Daze of Wine and Roaches | March 21, 2007
|
| CSI: NY | Insp. Stanton Gerrard | 3x21 - Past Imperfect | April 25, 2007
|
| CSI: NY | Insp. Stanton Gerrard | 3x22 - Cold Reveal | May 2, 2007
|
| CSI: NY | Insp. Stanton Gerrard | 3x23 - ...Comes Around | May 9, 2007
|
| House, M.D. | Henry Dobson | 4x02 - The Right Stuff | October 2, 2007
|
| House, M.D. | Henry Dobson | 4x03 - 97 Seconds | October 9, 2007
|
| House, M.D. | Henry Dobson | 4x04 - Guardian Angels | October 23, 2007
|
| CSI: NY | Inspector Gerrard | 4x18 - Admissions | April 30, 2008
|
| Criminal Minds | Father Paul Silvano | 4x17 - Demonology | March 11, 2009
|
| The Mentalist | Vice Principal DeSouza | 2x11 - Rose-Colored Glasses | January 14, 2010
|
| Castle | Mario Rivera | 3x08 - Murder Most Fowl | November 8, 2010
|