| Series
| Role
| Episode
| Airdate
|
| Rawhide | Mastic | 1x02 - Incident at Alabaster Plain | January 16, 1959
|
| Hotel de Paree | Raphael Riordan | 1x05 - Return of Monique | October 30, 1959
|
| Stoney Burke | Redmond | 1x32 - The Journey | May 20, 1963
|
| The Nurses (1962) | | 2x06 - The Horn of Plenty | October 31, 1963
|
| Ben Casey | | 3x14 - From Too Much Love of Living | December 11, 1963
|
| The Outer Limits (1963) | Ian Fraser | 1x12 - The Borderland | December 16, 1963
|
| The Twilight Zone | Trooper Robert Franklin | 5x35 - The Fear | May 29, 1964
|
| The Fugitive | Johnny | 2x15 - Ballad for a Ghost | December 29, 1964
|
| The Outer Limits (1963) | Jefferson Rome | 2x17 - The Probe | January 16, 1965
|
| The F.B.I. | Maury Maddock | 1x07 - The Problem of the Honorable Wife | October 31, 1965
|
| The Wild Wild West | Prince Gio | 1x08 - The Night of the Dancing Death | November 5, 1965
|
| Twelve O'Clock High | Colonel Kendall Hunter | 2x13 - The Jones Boys | December 6, 1965
|
| Voyage to the Bottom of the Sea | Captain Gantt | 2x23 - The Monster's Web | February 27, 1966
|
| The Fugitive | Deputy Steel | 4x01 - The Last Oasis | September 13, 1966
|
| Jericho (1966) | | 1x09 - One for the Mountain (1) | November 10, 1966
|
| Jericho (1966) | Major Otto Von Zeeny | 1x10 - Two for the Road (2) | November 17, 1966
|
The Invaders
(credited as Mark Richman)
| Tom Wiley | 1x04 - The Leeches | January 31, 1967
|
The Virginian
(credited as Mark Richman)
| Al Keets | 5x20 - The Gauntlet | February 8, 1967
|
The Iron Horse
(credited as Mark Richman)
| Pierre Le Druc | 1x26 - The Passenger | March 6, 1967
|
The Felony Squad
(credited as Mark Richman)
| Emmett Koster | 1x28 - The Fear Merchant | March 27, 1967
|
Daniel Boone
(credited as Mark Richman)
| Hawk | 4x03 - The Renegade | September 28, 1967
|
Ironside
(credited as Mark Richman)
| Daryll Frazer | 1x05 - The Taker | October 12, 1967
|
The Man from U.N.C.L.E.
(credited as Mark Richman)
| Webb | 4x15 - The Seven Wonders of the World Affair (1) | January 8, 1968
|
The Man from U.N.C.L.E.
(credited as Mark Richman)
| Webb | 4x16 - The Seven Wonders of the World Affair (2) | January 15, 1968
|
Gunsmoke
(credited as Mark Richman)
| Norman Trainor | 13x24 - Mr. Sam'l | February 26, 1968
|
The Invaders
(credited as Mark Richman)
| Andrew M. Hatcher | 2x26 - Inquisition | March 26, 1968
|
The F.B.I.
(credited as Mark Richman)
| John Parker | 3x25 - The Predators | April 7, 1968
|
The F.B.I.
(credited as Mark Richman)
| Vincent Gray | 4x08 - Breakthrough | November 17, 1968
|
Bonanza
(credited as Mark Richman)
| Richard Vandeman | 10x14 - A World Full of Cannibals | December 22, 1968
|
Hawaii Five-O
(credited as Mark Richman)
| Nick Morgan | 1x17 - Along Came Joey | February 12, 1969
|
Lancer
(credited as Mark Richman)
| Carl Bolton | 1x19 - Angel Day and Her Sunshine Girls | February 25, 1969
|
| Mannix | Martin Emory/Harry Glidden | 3x15 - Walk with a Dead Man | January 10, 1970
|
| Mission: Impossible | General Stefano Aragas | 4x18 - Gitano | February 1, 1970
|
| The F.B.I. | Vincent Manion | 5x23 - Return to Power | February 15, 1970
|
| Mission: Impossible | Dr. Paul Tabor | 5x06 - My Friend, My Enemy | October 25, 1970
|
| The F.B.I. | Rudy Walden | 6x25 - The Natural | March 14, 1971
|
| The F.B.I. | John Sutton | 8x05 - The Gopher | October 15, 1972
|
| Mission: Impossible | Dr. Hargreaves | 7x07 - Underground | October 28, 1972
|
| Marcus Welby, M.D. | Arthur Kolinski | 4x17 - Who Are You Arthur Kolinski? | January 16, 1973
|
| The Streets of San Francisco | Vince Bondini | 2x10 - Shield of Honor | November 15, 1973
|
| The F.B.I. | | 9x16 - The Animal | February 17, 1974
|
| Barnaby Jones | Richard Stayman | 3x02 - Dead Man's Run | September 17, 1974
|
| Ironside | Parker | 8x10 - Far Side of the Fence | November 21, 1974
|
| Barnaby Jones | Jim Redmon | 4x18 - Silent Vendetta | January 29, 1976
|
| Cannon | Roy | 5x25 - Mad Man | March 3, 1976
|
| Baretta | Simon Abbott | 3x04 - Street Edition | October 13, 1976
|
| Quincy, M.E. | | 3x04 - A Question of Time | October 14, 1977
|
| The Bionic Woman | Col. Dubnov | 3x09 - Escape to Love | November 26, 1977
|
| Three's Company | Rev. Snow | 2x23 - Chrissy Come Home | February 28, 1978
|
| Dallas | Maynard Anderson | 2x03 - Old Acquaintance | October 7, 1978
|
| Vega$ | Grady | 1x09 - Lost Women | November 22, 1978
|
| Starsky and Hutch | Schiller | 4x16 - Ninety Pounds of Trouble | February 6, 1979
|
| Three's Company | Rev. Snow | 3x22 - Triangle Troubles | May 15, 1979
|
| 240-Robert | Marcus | 1x13 - Oil and Water | December 3, 1979
|
| Charlie's Angels | Atamien | 4x13 - Cruising Angels | December 12, 1979
|
| Three's Company | Rev. Snow | 4x14 - The Reverend Steps Out | December 18, 1979
|
| Vega$ | Sam Ullman | 2x20 - The Golden Gate Cop Killer (1) | March 19, 1980
|
| Vega$ | Sam Ullman | 2x21 - The Golden Gate Cop Killer (2) | March 19, 1980
|
| Dynasty | Andrew Laird | 1x01 - Oil (1) | January 12, 1981
|
| Dynasty | Andrew Laird | 1x02 - Oil (2) | January 12, 1981
|
| Dynasty | Andrew Laird | 1x03 - Oil (3) | January 12, 1981
|
| Dynasty | Andrew Laird | 1x04 - The Honeymoon | January 19, 1981
|
| Dynasty | Andrew Laird | 1x08 - The Bordello | February 23, 1981
|
| Dynasty | Andrew Laird | 1x12 - The Birthday Party | March 16, 1981
|
| Dynasty | Andrew Laird | 1x14 - Blake Goes to Jail | April 13, 1981
|
| Dynasty | Andrew Laird | 1x15 - The Testimony | April 20, 1981
|
| Hart to Hart | Owen Grant | 2x16 - The Murder of Jonathan Hart | April 28, 1981
|
| Dynasty | Andrew Laird | 2x01 - Enter Alexis | November 4, 1981
|
| Dynasty | Andrew Laird | 2x02 - The Verdict | November 11, 1981
|
| The Incredible Hulk | Ellis Jordan | 5x05 - Triangle | November 13, 1981
|
| Dynasty | Andrew Laird | 2x03 - Alexis' Secret | November 18, 1981
|
| Dynasty | Andrew Laird | 2x07 - The Miscarriage | December 16, 1981
|
| Dynasty | Andrew Laird | 2x10 - Sammy Jo and Steven Marry | January 20, 1982
|
| Dynasty | Andrew Laird | 2x12 - Blake's Blindness | February 3, 1982
|
| Dynasty | Andrew Laird | 2x13 - The Hearing | February 10, 1982
|
| Dynasty | Andrew Laird | 2x18 - The Gun | March 24, 1982
|
| Dynasty | Andrew Laird | 2x19 - The Fragment | April 7, 1982
|
| Hart to Hart | Arthur Horton | 4x05 - Harts at High Noon | November 9, 1982
|
| The Fall Guy | Frank Dial | 2x09 - How Do I Kill Thee? Let Me Count the Ways | December 22, 1982
|
| Dynasty | Andrew Laird | 3x17 - Battle Lines | February 16, 1983
|
| Dynasty | Andrew Laird | 3x24 - The Cabin | April 20, 1983
|
| Dynasty | Andrew Laird | 4x03 - The Note | October 19, 1983
|
| Dynasty | Andrew Laird | 4x04 - The Hearing (1) | October 26, 1983
|
| Dynasty | Andrew Laird | 4x05 - The Hearing (2) | November 2, 1983
|
| Dynasty | Andrew Laird | 4x06 - Tender Commrades | November 9, 1983
|
| Dynasty | Andrew Laird | 4x12 - The Wedding | December 28, 1983
|
| Dynasty | Andrew Laird | 4x13 - The Ring | January 4, 1984
|
| Knight Rider | Dr.Klaus | 2x18 - Goliath Returns (1) | February 19, 1984
|
| Knight Rider | Dr.Klaus | 2x19 - Goliath Returns (2) | February 19, 1984
|
| Dynasty | Andrew Laird | 4x21 - The Voice (2) | March 21, 1984
|
| Dynasty | Andrew Laird | 5x02 - The Mortgage | October 10, 1984
|
| The Fall Guy | | 4x11 - Baja 1000 | November 28, 1984
|
| Hotel | | 2x14 - Anniversary | February 20, 1985
|
| Knight Rider | Kleist | 4x08 - Many Happy Returns | November 15, 1985
|
| T.J. Hooker | Russ Paterno | 5x15 - Death Trip | May 14, 1986
|
| Murder, She Wrote | Lamar Bennett | 3x07 - Deadline for Murder | November 16, 1986
|
| Hotel | Dr. Lyman | 5x13 - Double Take | January 2, 1988
|
| Star Trek: The Next Generation | Ralph Offenhouse | 1x26 - The Neutral Zone | May 16, 1988
|
| Matlock | Adam Whitley | 3x11 - The Other Woman | February 21, 1989
|
| Beverly Hills, 90210 | Lawrence Carson | 4x06 - Strangers in the Night | October 13, 1993
|
| Beverly Hills, 90210 | Lawrence Carson | 4x07 - Moving Targets | October 20, 1993
|
| Beverly Hills, 90210 | Lawrence Carson | 4x10 - And Did It...My Way | November 10, 1993
|
| Beverly Hills, 90210 | Lawrence Carson | 4x21 - Addicted to Love | February 16, 1994
|
| Batman: The Animated Series | Charles Baxter | 3x03 - Riddler's Reform | September 24, 1994
|
