2022
Simchas and Sorrows as Nate
2021
The Acolyte as Arch Pontifex
2021
John Cullum: An Accidental Star as Self
2019
Prodigal Son as Logan Zeiger (1 episode)
2016
Christine as Bob Andersen
2015
Unbreakable Kimmy Schmidt as Daddy's Daddy (1 episode)
2014
The Historian as Brigston Hadley
2014
Before We Go as Harry
2013
The Blacklist as Ted King (1 episode)
2013
Rodgers and Hammerstein's Carousel: Live from Lincoln Center as The Starkeeper
2013
Kilimanjaro as Milton
2010
All Good Things as Richard Panatierre
2010
Lafayette: The Lost Hero as Narrator
2009
The Middle as Big Mike (9 episodes)
2009
The Good Wife as Cardinal James (1 episode)
2007
Mad Men as Lee Garner, Sr. (2 episodes)
2006
30 Rock as Mysterious Man (1 episode)
2006
The Night Listener as Pap Noone
2005
Secrets of Angels, Demons and Masons as Narrator
2005
The Notorious Bettie Page as Preacher in Nashville
2004
Unforgivable Blackness: The Rise and Fall of Jack Johnson as Other Voices (voice)
2003
Horatio's Drive: America's First Road Trip as Other Voices (voice)
2001
Ricochet River as Link Curren
2001
Urinetown as Caldwell B. Cladwell
1999
Roswell as James Valenti Sr. (2 episodes)
1999
Law & Order: Special Victims Unit as Barry Moredock (11 episodes)
1999
Inherit the Wind as Judge Merle Coffey
1997
The Secret Life of Algernon as Algernon Pendleton
1994
Touched by an Angel as Mark Twain (1 episode)
1994
ER as David Greene (15 episodes)
1990
Law & Order as Bernard Powell, Sr. (1 episode)
1990
Law & Order as Harold Dorning (1 episode)
1990
Northern Exposure as Holling Vincoeur (110 episodes)
1989
Money, Power, Murder. as Rev. Endicott
1989
Quantum Leap as John O'Malley / Miguel de Cervantes / Don Quixote (1 episode)
1988
Shootdown as Robert Allardyce
1987
Sweet Country as Ben
1985
Marie: A True Story as Deputy Attorney General
1985
Spenser: For Hire (1 episode)
1985
The Equalizer as Judge Howard Tainey (1 episode)
1985
The Equalizer as Stuart Cane (1 episode)
1984
The Act as The President
1983
The Day After as Jim Dahlberg
1983
The Prodigal as Elton Stuart
1982
Carl Sandburg: Echoes and Silences as Carl Sandburg
1978
Roll of Thunder, Hear My Cry as Mr. Jamison (3 episodes)
1978
Roll of Thunder, Hear My Cry as Mr. Jamison
1973
The Man Without a Country as Aaron Burr
1972
1776 as Edward Rutledge (SC)
1971
Great Performances as Lawyer Royall (1 episode)
1971
Great Performances as Self (2 episodes)
1971
Great Performances as Walter (1 episode)
1968
The Outcasts (1 episode)
1967
Androcles and the Lion as Roman Captain
1966
Hawaii as Immanuel Quigley
1966
The Lyrics of Alan Jay Lerner as Himself
1964
Hamlet from the Lunt-Fontanne Theatre as Laertes
1963
All the Way Home as Andrew
1956
The Edge of Night (305 episodes)
1956
Tony Awards as Self - Nominee/Performer (1 episode)