| Series
| Role
| Episode
| Airdate
|
| Hawkins | | 1x06 - Murder in the Slave Trade | January 22, 1974
|
| Family | Ross Wheeler | 2x07 - The Cradle Will Fall | November 30, 1976
|
| The Fitzpatricks | | 1x13 - The New Fitzpatrick | unaired (1978)
|
| Saturday Night Live | Man in "Cold as Ice" (uncredited) | 3x15 - Christopher Lee/Meat Loaf | March 25, 1978
|
| Project U.F.O. | Mr. Mathis | 1x07 - Sighting 4007: The Forest City Incident | April 9, 1978
|
| Skag | | 1x03 - The Wildcatters | January 24, 1980
|
| Flamingo Road | Senator Potter | 1x09 - Trapped | March 3, 1981
|
| Flamingo Road | Senator Potter | 2x01 - The Arrangement | November 3, 1981
|
| Flamingo Road | Senator Potter | 2x02 - The Victim | November 10, 1981
|
| Missing: Reward | Himself | ?? - Marilyn's Red Diary | June 1, 1989
|
| Freddy's Nightmares | George Teller | 2x02 - Heartbreak Hotel | October 15, 1989
|
| In the Heat of the Night | Wade Hatton | 7x02 - Hatton's Turn (1) | September 18, 1993
|
| In the Heat of the Night | Wade Hatton | 7x03 - Hatton's Turn (2) | September 18, 1993
|
| Touched by an Angel | Ty Duncan | 2x03 - Sympathy for the Devil | October 7, 1995
|
| Promised Land | Ned Bernhart | - Downsized | March 4, 1997
|
| NOVA | Narrator | 25x08 - Avalanche! | November 25, 1997
|
| Rugrats | Marvin Finster | 5x12 - The Family Tree | September 21, 1998
|
| Batman Beyond | Richard Vance | 2x04 - Lost Soul | October 9, 1999
|
| Chicken Soup for the Soul | | 1x08B - Dance Night | October 12, 1999
|
| The Outer Limits (1995) | Cord van Owen | 6x02 - The Gun | January 28, 2000
|
| E! True Hollywood Story | Himself | ?? - David Carradine | July 30, 2000
|
| Rugrats | Marvin Finster | 8x04 - Finsterella | January 15, 2001
|
| The Zeta Project | Roland de Flores | 1x05 - The Next Gen | February 24, 2001
|
| The Simpsons | Howard Duff | 12x15 - Hungry Hungry Homer | March 4, 2001
|
| Warship | Narrator | 1x01 - Sea Power | November 7, 2001
|
| Warship | Narrator | 1x02 - Big Guns | November 7, 2001
|
| Warship | Narrator | 1x03 - Submarines | November 14, 2001
|
| Warship | Narrator | 1x04 - Aircraft Carriers | November 14, 2001
|
| Malcolm in the Middle | Carl | 3x04 - Malcolm's Girlfriend | November 28, 2001
|
| E! True Hollywood Story | Himself | ?? - Pia Zadora | May 26, 2002
|
| girls club (2002) | Harold Falcon | 1x02 - Book of Virtues | October 28, 2002
|
| Freedom: A History of Us | General George B. McClellan | 1x06 - A War to End Slavery | 2003
|
| Touched by an Angel | Maury Hoover | 9x11 - Private Eyes | January 11, 2003
|
| Intimate Portrait | Himself | ?? - Joan Collins | April 14, 2003
|
| The Simpsons | Howard Duff | 14x19 - Old Yeller Belly | May 4, 2003
|
| Boomtown | Jack "Mac" McNorris | 2x02 - Inadmissible | October 3, 2003
|
| What's New, Scooby-Doo? | Harold Lind | 3x09 - Block-Long Hong Kong Terror | March 27, 2005
|
| Will & Grace | Wendell Schacter | 7x22 - From Queer to Eternity | May 10, 2005
|
| George Lopez | Blaine McNamara | 4x23 - George Stare-oids Down Jason | May 10, 2005
|
| Prison Break | Warden Henry Pope | 1x01 - Pilot | August 29, 2005
|
| Prison Break | Warden Henry Pope | 1x02 - Allen | August 29, 2005
|
| Prison Break | Warden Henry Pope | 1x03 - Cell Test | September 5, 2005
|
| Prison Break | Warden Henry Pope | 1x04 - Cute Poison | September 12, 2005
|
| Prison Break | Warden Henry Pope | 1x05 - English, Fitz or Percy | September 19, 2005
|
| Prison Break | Warden Henry Pope | 1x06 - Riots, Drills and the Devil (1) | September 26, 2005
|
| Prison Break | Warden Henry Pope | 1x07 - Riots, Drills and the Devil (2) | October 3, 2005
|
| Prison Break | Warden Henry Pope | 1x08 - The Old Head | October 24, 2005
|
| Prison Break | Warden Henry Pope | 1x09 - Tweener | October 31, 2005
|
| Prison Break | Warden Henry Pope | 1x11 - And Then There Were 7 | November 14, 2005
|
| Prison Break | Warden Henry Pope | 1x12 - Odd Man Out | November 21, 2005
|
| Prison Break | Warden Henry Pope | 1x13 - End of the Tunnel | November 28, 2005
|
| Prison Break | Warden Henry Pope | 1x14 - The Rat | March 20, 2006
|
| Prison Break | Warden Henry Pope | 1x15 - By the Skin and the Teeth | March 27, 2006
|
| Prison Break | Warden Henry Pope | 1x17 - J-Cat | April 10, 2006
|
| Prison Break | Warden Henry Pope | 1x18 - Bluff | April 17, 2006
|
| Prison Break | Warden Henry Pope | 1x19 - The Key | April 24, 2006
|
| Prison Break | Warden Henry Pope | 1x20 - Tonight | May 1, 2006
|
| Prison Break | Warden Henry Pope | 1x21 - Go | May 8, 2006
|
| Prison Break | Warden Henry Pope | 1x22 - Flight | May 15, 2006
|
The Simpsons (credited as Stacey Keach)
| Buck Mitchell | 17x22 - Marge and Homer Turn a Couple Play | May 21, 2006
|
| Prison Break | Warden Henry Pope | 2x01 - Manhunt | August 21, 2006
|
| Prison Break | Warden Henry Pope | 2x02 - Otis | August 28, 2006
|
| Prison Break | Warden Henry Pope | 2x17 - Bad Blood | February 19, 2007
|
| ER | Mike Gates | 13x17 - From Here to Paternity | February 22, 2007
|
| ER | Mike Gates | 13x19 - Family Business | April 19, 2007
|
| ER | Mike Gates | 13x20 - Lights Out | April 26, 2007
|
| Two and a Half Men | Tom | 7x13 - Yay, No Polyps | January 18, 2010
|
| Two and a Half Men | Tom | 7x16 - Tinkle Like a Princess | March 1, 2010
|
| Two and a Half Men | Tom | 7x17 - I Found Your Moustache | March 8, 2010
|
| Two and a Half Men | Tom | 7x22 - This Is Not Gonna End Well | May 24, 2010
|
| Title
| Role
| Airdate
| Series/Banner
|
| Macbeth (1968) | Banquo | November 17, 1968 |
|
| Particular Men | | April 15, 1972 |
|
| The Man of Destiny | Napoleon Bonaparte | November 21, 1973 |
|
| Antigone | Chorus | February 13, 1974 |
|
| All the Kind Strangers | Jimmy Wheeler | November 12, 1974 |
|
| James Dean: The First American Teenager | Narrator | 1975 |
|
| James A. Michener's Dynasty | Matt Blackwood | March 13, 1976 |
|
| Diary of a Young Comic | | 1977 |
|
| Portrait of a Rebel: The Remarkable Mrs. Sanger | Judge Murdock | April 22, 1980 |
|
| A Rumor of War | Maj. Ball | September 24, 1980 |
|
| Wait Until Dark | Roat/Roat, Sr./Roat, Jr. | 1982 |
|
| Murder Me, Murder You | Mike Hammer | April 9, 1983 | Mickey Spillane's Mike Hammer (1984)
|
| Princess Daisy | Prince Stash Valensky | November 6, 1983 |
|
| More Than Murder | Mike Hammer | January 26, 1984 | Mickey Spillane's Mike Hammer (1984)
|
| Intimate Strangers | Dr. Jeff Bierston | January 1, 1986 |
|
| The Return of Mickey Spillane's Mike Hammer | Mike Hammer | April 18, 1986 | Mickey Spillane's Mike Hammer (1984)
|
| The Forgotten (TV movie) | Adam Roth | April 26, 1989 |
|
| Murder Takes All | Mike Hammer | May 21, 1989 | The New Mike Hammer
|
| Circus of the Stars #14 | Himself (Ringmaster) | November 22, 1989 |
|
| Mission of the Shark: The Saga of the U.S.S. Indianapolis | Capt. Charles Butler McVay | September 29, 1991 |
|
| Lincoln & Seward | | 1992 |
|
| Revenge on the Highway | Claude Sams | December 6, 1992 |
|
| Lincoln | George McClellan | December 26, 1992 |
|
| Irresistible Force | Harris Stone | 1993 |
|
| The Lost Fleet of Guadalcanal | | 1993 |
|
| Rio Diablo | Kansas (bounty hunter) | February 28, 1993 |
|
| Body Bags | Richard Coberts | August 8, 1993 |
|
| Reflections on Elephants | Narrator | February 9, 1994 |
|
| James A. Michener's Texas | Sam Houston | April 16, 1995 |
|
| Against Their Will: Women in Prison | Jack Devlin | October 30, 1994 |
|
| Young Ivanhoe | Pembrooke | 1995 |
|
| The World's Most Dangerous Animals III | Narrator | 1995 |
|
| Amanda & the Alien | Emmitt Mallory | August 20, 1995 |
|
| The Pathfinder | Compte du Leon | 1996 |
|
| Plague Fighters | Narrator | February 6, 1996 |
|
| Legend of the Lost Tomb | Dr. William Bent | 1997 |
|
| Volcano: Nature's Inferno | Narrator | 1997 |
|
| The Titanic's Lost Sister | Narrator | January 28, 1997 |
|
| Murder in My Mind | Cargill | February 19, 1997 |
|
| Mysteries of Deep Space | Narrator | April 14, 1997 |
|
| Sea Monsters: Search for the Giant Squid | Narrator | February 25, 1998 |
|
| Great Quakes: Mexico City | Narrator | 1999 |
|
| The Courage to Love | Jean Baptiste | January 24, 2000 |
|
| Tesla: Master of Lightning | Nikola Tesla (voice) | December 12, 2000 |
|
| Lightning: Fire from the Sky | Bart Hansen | November 3, 2001 |
|
| Great Projects: The Building of America | Narrator | July 3, 2002 |
|
| The Santa Trap | Max Hurst | December 13, 2002 |
|
| Miracle Dogs | C.W. Aldrich | 2003 |
|
| Frozen Impact | Pete Crane | March 14, 2003 |
|
| Wie tauscht man seine Eltern um? | Richard Hendersen | May 20, 2003 |
|
| The Man with the Screaming Brain | Dr. Ivanov | September 10, 2005 | SCI FI Pictures
|
| The Mummy Who Would Be King | Narrator | January 3, 2006 |
|
| Fatal Contact: Bird Flu in America | Secretary Collin Reed | May 9, 2006 |
|
| Blackbeard | Cpt. Benjamin Hornigold | June 17, 2006 |
|
| Desolation Canyon | Samuel Kendrick | July 1, 2006 |
|
| Haunted Prison | John Elias | October 14, 2006 | SCI FI Pictures
|
| Galápagos | Narrator | March 18, 2007 |
|
| Lone Rider | Robert Hattaway | April 12, 2008 |
|
| Camelot | Merlyn | May 8, 2008 | Live from Lincoln Center
|
| The Nanny Express | Priest | January 3, 2009 |
|
| Ring of Death | Warden Golan | February 16, 2009 |
|
| Meteor | Sheriff Crowe | July 12, 2009 |
|