| Aasta
|
Tiitel
|
Roll
|
Notes
|
| 1977
|
Kojak
|
Thomas Rindone
|
2 osa "Kojak's Days Pt1 & Pt2"
|
| 1979
|
Taxi
|
Philip Polevoy
|
Osa: "Nardo Loses Her Marbles"
|
| 1982
|
Silver Spoons
|
Louis Morgan
|
Pilootosa
|
| 1982–1984
|
Alice
|
Officer Maxwell
|
8 osa
|
| 1986
|
Benson
|
Richard Alan Tracy
|
Osa: "Reel Murder: Part 1"
|
| 1986
|
Hardcastle and McCormick
|
Manny
|
Osa: "Brother, Can You Spare a Crime?"
|
| 1986
|
Scarecrow and Mrs. King
|
Randall Skylar
|
Osa: "Three Little Spies"
|
| 1986
|
Amazing Stories
|
Tony Sepulveda
|
Osa: "Boo!"
|
| 1986
|
The Golden Girls
|
Dr. Revell
|
Osa: "The Operation"
|
| 1987–1991
|
L.A. Law
|
Lawyer John Dunphy, Lawyer Joe Dumphy
|
2 osa
|
| 1987
|
21 Jump Street
|
Ralph Buckley
|
Osa: "Gotta Finish the Riff"
|
| 1987
|
St. Elsewhere
|
Eli Muzzy
|
Osa: "Weigh In, Weight Out"
|
| 1988–1991
|
The Wonder Years
|
Coach Cutlip
|
15 Osai. Nomineeritud Primetime Emmy Awardile kui väljapaistev külalisnäitlseja komöödiasarjas ning publiku lemmiku auhinnale Viewers for Quality Television Awardil kui parim erikülaline.
|
| 1988–1991
|
China Beach
|
Dr. Dick Richard
|
54 Osai Nomineeritud publiku lemmikuks Viewers for Quality Television Awardil kui parim kõrvalosatäitja kvaliteetdraamasarjas. (1990–91)
|
| 1989
|
Newhart
|
Terry
|
Osa: "The Little Match Girl"
|
| 1992
|
CBS Schoolbreak Special
|
Paul Lance
|
Osa: "Two Teens and a Baby"
|
| 1992–1993
|
Dinosaurs
|
Clerk / Muse / Ted (voice)
|
3 osa
|
| 1993
|
Home Improvement
|
Joe Morton
|
2 osa
|
| 1993
|
The Adventures of Brisco County, Jr.
|
Puel
|
Osa: "The Orb Scholar"
|
| 1993
|
Batman: The Animated Series
|
Eddie G. (voice)
|
Osa: "The Man Who Killed Batman"
|
| 1993
|
Tales from the Crypt
|
Frank Bobo
|
Osa: "Til Death Do We Part"
|
| 1994
|
Rebel Highway
|
Mr. Ed Cahn
|
Osa: "Runaway Daughters"
|
| 1995–2001
|
Star Trek: Voyager
|
The Doctor, Dr. Lewis Zimmerman
|
166 Osai Nomineeritud Saturn Awardile kui parim kõrvalosatäitja televisioonis
|
| 1995
|
ER
|
Abraham Zimble, Mobile Notary
|
Osa: "Days Like This"
|
| 1995–1997
|
The Cartoon Cartoon Show
|
Pfish (voice)
|
2 osa
|
| 1997
|
Early Edition
|
Doctor
|
Osa: "Faith"
|
| 1997
|
Star Trek: Deep Space Nine
|
Dr. Lewis Zimmerman, Emergency Medical Hologram
|
Osa: "Doctor Bashir, I Presume?"
|
| 1998
|
The Outer Limits
|
Emmet Harley
|
Osa: "Sarcophagus"
|
| 1998
|
Cow and Chicken
|
President / Puppet President / Narrator (voice)
|
Osa: "101 Uses for Cow and Chicken/Intelligent Life?/I.M. Weasel: Tree Story"
|
| 1999
|
Ally McBeal
|
Barry Philbrick
|
Osa: "Love's Illusions"
|
| 2000
|
Buzz Lightyear of Star Command
|
Professor Reddschift (voice)
|
Osa: "First Missions"
|
| 2001
|
7 Days
|
Major Michael McGrath
|
Osa: "Revelation"
|
| 2001
|
Frasier
|
Mr. Koechner
|
Osa: "Bully for Martin"
|
| 2001
|
The Weakest Link
|
Himself
|
Osa: "Star Trek: Weakest Link Edition
|
| 2002
|
Crossing Jordan
|
Father Bruno Casnelli
|
Osa: "Miracles & Wonders"
|
| 2002
|
The Practice
|
Dr. Edmunds
|
Osa: "Neighboring Species"
|
| 2002–2003
|
Justice League
|
Amazo / Blackhawk (voice)
|
4 osa
|
| 2003–2004
|
The Lyon's Den
|
Detective Nick Traub
|
7 osa
|
| 2003
|
Sabrina, The Teenage Witch
|
Bob Jacobs
|
3 osa
|
| 2004–2007
|
Stargate SG-1
|
Richard Woolsey
|
7 osa
|
| 2004
|
The West Wing
|
E. Bradford Shelton
|
Osa: "The Supremes"
|
| 2004
|
Justice League Unlimited
|
Amazo (voice)
|
2 osa
|
| 2005–2006
|
E-Ring
|
Larry Kincaid
|
4 osa
|
| 2005
|
The 4400
|
Trent Appelbaum
|
Osa: "Weight of the World"
|
| 2006
|
Ben 10
|
Leader Alien (voice)
|
Osa: "The Big Tick"
|
| 2006
|
Eve
|
Professor Dawson
|
Hooaeg 3 osa 17
|
| 2006
|
The O.C.
|
Bill Merriam
|
Osa: "The Pot Stirrer"
|
| 2006–2009
|
Stargate Atlantis
|
Richard Woolsey
|
20 osa
|
| 2007
|
The Closer
|
Mr. Sheffield
|
Osa: "Saving Face"
|
| 2007
|
CSI: NY
|
Sheriff Benson
|
Osa: "Boo"
|
| 2008
|
Smallville
|
Edward Teague
|
2 osa
|
| 2009–2010
|
Castle
|
Dr. Clark Murray
|
2 osa
|
| 2009
|
Chuck
|
Dr. Howard Busgang (Perseus)
|
Osa: "Chuck Versus the Lethal Weapon"
|
| 2010
|
Justified
|
Karl Hanselman
|
Osa: "The Collection"
|
| 2010
|
Supernatural
|
Wayne Whittaker/Leprachaun
|
Osa: "Clap Your Hands If You Believe"
|
| 2011
|
Stargate Universe
|
Richard Woolsey
|
Osa: "Seizure"
|
| 2011
|
No Ordinary Family
|
Vice-principal Nance
|
Osa: "No Ordinary Animal"
|
| 2011
|
United States of Tara
|
Dr. Smolow
|
Osa: "Bryce Will Play"
|
| 2012
|
Body of Proof
|
Henry
|
Osa: "Cold Blooded"
|
| 2012
|
Austin and Ally
|
Dr. Grant
|
Osa: "Successes & Setbacks"
|
| 2012
|
Hawaii Five-0
|
FBI Agent
|
Osa: "The Promise"
|
| 2012–2013
|
The Mentalist
|
Jason Cooper
|
4 osa
|
| 2013
|
Jessie
|
Cyril Lipton
|
Osa: "To Be Me or Not to Be Me"
|
| 2014
|
Bones
|
Dr. Lawrence Rozran
|
Osa: "The Heiress in the Hill"
|
| 2014–2018
|
Bravest Warriors
|
Puddingtown / Eyeball (voice)
|
7 osa
|
| 2015
|
Star Trek: Renegades
|
Dr. Lewis Zimmerman
|
Osa: "Pilot"
|
| 2016
|
Lucifer
|
Yuri
|
Osa: "Lady Parts"
|
| 2017
|
Salem
|
Mr. Stoughton
|
Osa: "Night's black agents"
|
| 2017
|
Justice League Action
|
Two-Face (voice)
|
Osa: "Double Cross"
|
| 2017–2019
|
The Orville
|
Ildis Kitan
|
2 osa
|
| 2019
|
Dickinson
|
Ithamar Conkey
|
4 osa
|
| 2019
|
Schooled
|
Himself
|
Osa: “Money for RENT”
|
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