Cast & creator
John de Lancie
Best known for The Mentalist, Family Guy, CSI: Crime Scene Investigation
John de Lancie (born March 20, 1948) is an American actor. He has been active in screen and television roles since 1977 and has been featured for several recurring roles on American television series, including Q in Star Trek: The Next Generation, Star Trek: Deep Space Nine and Star Trek: Voyager, Colonel Frank Simmons in Stargate SG-1, Donald Margolis in Breaking Bad, and Discord in My Little Pony: Friendship Is Magic.
Also known as: John DeLancie
77
film credits
83
television credits
157
1965–2024 · acting roles
6.9
average across scored titles
Signature credits
Known for
Across film & television
Filmography (160)
Showing 160 of 160 credits
The Mentalist
Edward Feinberg
2008
Family Guy
Pewterschmidt Industries Executive (voice)
1999
CSI: Crime Scene Investigation
Robert Lansdale
2000
Breaking Bad
Donald Margolis
2008
Charmed
Odin
1998
The West Wing
Al Kiefer
1999
Stargate SG-1
Frank Simmons
1997
Star Trek: The Next Generation
Q
1987
Star Trek: Voyager
Q
1995
My Little Pony: Friendship Is Magic
Discord (voice)
2010
MacGyver
Brian Ashford
1985
The Closer
Dr. Dawson
2005
Star Trek: Deep Space Nine
Q
1993
Without a Trace
Brian Gaghan
2002
The Outer Limits
Donald Finley
1995
Young Justice
Mr. Twister / Brom Stikk (voice)
2010
Murder, She Wrote
Binky Holborn
1984
The Practice
Walter Bannish
1997The Practice
Dr. Walsh
1997
Crossing Jordan
Thaxton
2001
Touched by an Angel
Justinian Jones
1994
L.A. Law
Mark Chelios
1986
Judging Amy
Dr. Eagan
1999
Batman: The Animated Series
Eagleton (voice)
1992
Star Trek: Strange New Worlds
Q (voice)
2022
Matlock
Dr. Albert Levinson
1986
The Six Million Dollar Man
Medic
1974The Six Million Dollar Man
Diver
1974The Six Million Dollar Man
Sergeant Chapman
1974
Emergency!
Dr. DeRoy
1972
The Division
Tom Burke Sr.
2001
The Unit
Elliott Gillum
2006
The Guardian
Frank Newburg
2001
The Twilight Zone
(segment "Dead Run")
1985
Star Trek: Lower Decks
Q (voice)
2020
Le Grand Échiquier
Self
1972
Franklin & Bash
Gallen
2011
Andromeda
Uncle Sid Barry / Sam Profitt
2000
X-Men '97
Rama-Tut (voice)
2024X-Men '97
Rama-Tut / Kang (voice)
2024
Duckman
Tyler Fitzgerald (voice)
1994
In Plain Sight
Ran Bachman
2008
Star Trek: Picard
Q
2020
Torchwood
Allen Shapiro
2006
The Librarians
Sesselman
2014
Ally McBeal
Jackson Poile
1997
Murder One
Mitchell Garron, Esq.
1995
Greek
Himself
2007
Shark
Warren Kovak
2006
Saving Private Ryan
Letter-reader (voice) (uncredited)
1998
Justice League Action
Brainiac (voice)
2016
Duck Dodgers
Sinestro (voice)
2003
Police Story
Sgt. Ralski
1973
The Angry Beavers
1997
The Real Adventures of Jonny Quest
Dr. Benton Quest (voice)
1996
Battlestar Galactica
Officer
1978
Law & Order: LA
Avery Staynor
2010
Dave's World
Mr. McFadden
1993
The Ready Room
Self
2019
Days of Our Lives
Eugene Bradford
1965
The Secret Circle
Royce Armstrong
2011
NTSF:SD:SUV::
Leo Da Vinci
2011
Sports Night
Bert Stors
1998
DOTA: Dragon's Blood
Ritterfau (voice)
2021
Mission: Impossible
Drake
1988
Working
Kevin
1997
Nero Wolfe
Tom Irwin
1981
Special Unit 2
King of the Links
2001
Fired Up
Mr. Lux
1997
Crank: High Voltage
Fish Halman
2009
The Shuttlepod Show
Self
2022
The Thorn Birds
Alastair MacQueen
1983
Olaf's Frozen Adventure
Mr. Olsen (voice)
2017
The Big Guy and Rusty the Boy Robot
1999
The Hand That Rocks the Cradle
Dr. Victor Mott
1992
Secret Agent Man
Marshall Gilder
2000
Masters of the Universe: Revolution
Granamyr (voice)
2024
The Fisher King
TV Executive
1991
Reign Over Me
Nigel Pennington
2007
Visions
Victor Napoli
2015
Gamer
Chief Of Staff
2009
The Bastard
Lt. Stark
1978
Legend
Janos Bartok
1995
Christine Cromwell
1989
Woman on Top
Alex Reeves
2000
The Captains Close Up
Self
2013
Dan Dare: Pilot of the Future
Councilor Gerard Hamilton (voice)
2002
Bad Influence
Howard
1990
Pathology
Dr. Quentin Morris
2008
Taking Care of Business
Ted Bradford Jr.
1990
Little Women
Frank Vaughn
1978
The Nutt House
Norman Shrike
1989
Multiplicity
Ted
1996
Good Advice
Ted
2001
Fearless
Jeff Gordon
1993
Aspen
Ray Chilton
1977
The Onion Field
LAPD Lieutenant
1979
The Captains
Self
2011
Buttons
Dr. Johnson
2018
My Little Pony: Best Gift Ever
Discord (voice)
2018
50 Years of Star Trek
Self
2016
Get Smart, Again!
Maj. Waterhouse
1989
You Lucky Dog
Lyle Windsor
1998
Border Line
Rolf Berger
1999
Bronies 2 - More Unexpected Fans of My Little Pony
2014
The Eavesdropper
Dr. Gene Kramer
2004
Star Trek: 25th Anniversary Special
Self
1991
Trekkies
Self
1997
Manipulated
2019
Star Trek: The Next Generation - All Good Things...
Q
2014
CLONED: The Recreator Chronicles
Dr. Frank Miller
2012
Journey's End - The Saga of Star Trek: The Next Generation
Self
1994
Chaos on the Bridge
Self
2014
Trial and Error
1988
Resurrect
Warren
2018
Evolver
Russell Bennett
1995
Blood Red
(uncredited)
1989
Houston: The Legend of Texas
John Van Fossen
1986
Star Trek: 30 Years and Beyond
Self
1996
Elf Sparkle Meets Christmas the Horse
Santa Claus (voice)
2009
Underground Entertainment: The Movie
John
2011
Ayreon: Electric Castle Live And Other Tales
Narrator
2020
Angel of Death
Jeffrey
1990
Final Descent
Capt. George W. Bouchard
1997
SST: Death Flight
Bob Connors
1978
The Late Batsby
Victor Freeze/Mr. Freeze (voice)
2018
Without Warning
Barry Steinbrenner
1994
Hypnotized
2015
Gen¹³
Colonel John 'Jack' Lynch (voice)
1998
Star Trek: Picard - The IMAX Live Series Finale Event
Q (uncredited)
2023
The Man with the Power
Clark
1977
On Fire
Bobby Holicker
1987
Bronies: The Extremely Unexpected Adult Fans of My Little Pony
Himself
2012Bronies: The Extremely Unexpected Adult Fans of My Little Pony
Executive Producer
2012
Missing Pieces
Paul / Walter Thackary
1992
Arcade
Difford
1993
The Miracle of Kathy Miller
Dr. Christensen
1981
Darklight
Faith Director Chapel
2004
Raven Hawk
Stansfield
1996
My Little Pony Friendship Is Magic: Keys of Friendship
Discord
2014
Zombie Hamlet
Jerry
2012
Loving Couples
Allan
1980
Never Say Never: The Deidre Hall Story
John de Lancie (uncredited)
1995
The Big Time
Vaughn Clay
2002Legacy
1975
Final Run
George Bouchard
1999
Schemes
Arthur Martin
1994
Burl's
Mr Cooper
2003The Lost World
Lord John Roxton
1998The Lost World
Screenplay
1998
Deep Red
Thomas Newmeyer
1994
When the Train Stops
Jason Booth
2019
The Lazarus Syndrome
EKG Doctor (uncredited)
1979
Remembering Leonard: His Life, Legacy and Battle with COPD
Himself
2017
Nightside
Willy Potts
1980
The Reality of Time
2024
IDENTITEAZE
Steve
2024Return to Area 51
Narrator
2002Return to Area 51
Producer
2002
My Apocalypse
Nathan Eastman
2008