John de Lancie

My Little Pony: Friendship Is Magic

as Discord (voice)

Episodes: 221

First Aired: Oct 10, 2010

The Real Adventures of Jonny Quest

as Dr. Benton Quest (voice)

Episodes: 26

First Aired: Aug 26, 1996

Legend

as Janos Bartok

Episodes: 13

First Aired: Apr 18, 1995

Star Trek: The Next Generation

as Q

Episodes: 8

First Aired: Sep 28, 1987

Star Trek: Picard

as Q

Episodes: 8

First Aired: Jan 23, 2020

Stargate SG-1

as Frank Simmons

Episodes: 5

First Aired: Jul 27, 1997

Breaking Bad

as Donald Margolis

Episodes: 4

First Aired: Jan 20, 2008

Charmed

as Odin

Episodes: 4

First Aired: Oct 07, 1998

The Thorn Birds

as Alastair MacQueen

Episodes: 4

First Aired: Mar 27, 1983

Star Trek: Voyager

as Q

Episodes: 3

First Aired: Jan 16, 1995

Aspen

as Ray Chilton

Episodes: 3

First Aired: Nov 05, 1977

Torchwood

as Allen Shapiro

Episodes: 3

First Aired: Oct 22, 2006

Andromeda

as Uncle Sid Barry / Sam Profitt

Episodes: 2

First Aired: Oct 02, 2000

Batman: The Animated Series

as Eagleton (voice)

Episodes: 2

First Aired: Sep 05, 1992

The West Wing

as Al Kiefer

Episodes: 2

First Aired: Sep 22, 1999

DOTA: Dragon's Blood

as Ritterfau (voice)

Episodes: 2

First Aired: Mar 25, 2021

The Six Million Dollar Man

as Diver

Episodes: 2

First Aired: Jan 18, 1974

Matlock

as Dr. Albert Levinson

Episodes: 2

First Aired: Mar 03, 1986

Masters of the Universe: Revolution

as Granamyr (voice)

Episodes: 2

First Aired: Jan 25, 2024

Fired Up

as Mr. Lux

Episodes: 2

First Aired: Apr 10, 1997

Little Women

as Frank Vaughn

Episodes: 2

First Aired: Oct 02, 1978

Justice League Action

as Brainiac (voice)

Episodes: 2

First Aired: Dec 16, 2016

The Closer

as Dr. Dawson

Episodes: 1

First Aired: Jun 13, 2005

Judging Amy

as Dr. Eagan

Episodes: 1

First Aired: Sep 19, 1999

Without a Trace

as Brian Gaghan

Episodes: 1

First Aired: Sep 26, 2002

MacGyver

as Brian Ashford

Episodes: 1

First Aired: Sep 29, 1985

The Practice

as Walter Bannish

Episodes: 1

First Aired: Mar 04, 1997

Special Unit 2

as King of the Links

Episodes: 1

First Aired: Apr 11, 2001

Mission: Impossible

as Drake

Episodes: 1

First Aired: Oct 23, 1988

Young Justice

as Mr. Twister / Brom Stikk (voice)

Episodes: 1

First Aired: Nov 26, 2010

Star Trek: Picard

as Q (uncredited)

Episodes: 1

First Aired: Jan 23, 2020

CSI: Crime Scene Investigation

as Robert Lansdale

Episodes: 1

First Aired: Oct 06, 2000

The Mentalist

as Edward Feinberg

Episodes: 1

First Aired: Sep 23, 2008

The Outer Limits

as Donald Finley

Episodes: 1

First Aired: Mar 26, 1995

Law & Order: LA

as Avery Staynor

Episodes: 1

First Aired: Sep 29, 2010

The Six Million Dollar Man

as Medic

Episodes: 1

First Aired: Jan 18, 1974

The Six Million Dollar Man

as Sergeant Chapman

Episodes: 1

First Aired: Jan 18, 1974

Murder One

as Mitchell Garron, Esq.

Episodes: 1

First Aired: Sep 20, 1995

Star Trek: Deep Space Nine

as Q

Episodes: 1

First Aired: Jan 03, 1993

Emergency!

as Dr. DeRoy

Episodes: 1

First Aired: Jan 22, 1972

L.A. Law

as Mark Chelios

Episodes: 1

First Aired: Sep 15, 1986

Family Guy

as Pewterschmidt Industries Executive (voice)

Episodes: 1

First Aired: Jan 31, 1999

Dave's World

as Mr. McFadden

Episodes: 1

First Aired: Sep 20, 1993

Murder, She Wrote

as Binky Holborn

Episodes: 1

First Aired: Sep 30, 1984

Touched by an Angel

as Justinian Jones

Episodes: 1

First Aired: Sep 21, 1994

Star Trek: Lower Decks

as Q (voice)

Episodes: 1

First Aired: Aug 06, 2020

Crossing Jordan

as Thaxton

Episodes: 1

First Aired: Sep 24, 2001

Working

as Kevin

Episodes: 1

First Aired: Oct 08, 1997

The Librarians

as Sesselman

Episodes: 1

First Aired: Dec 07, 2014

Battlestar Galactica

as Officer

Episodes: 1

First Aired: Sep 17, 1978

Ally McBeal

as Jackson Poile

Episodes: 1

First Aired: Sep 08, 1997

Nero Wolfe

as Tom Irwin

Episodes: 1

First Aired: Jan 16, 1981

Duck Dodgers

as Sinestro (voice)

Episodes: 1

First Aired: Aug 23, 2003