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Photo of Patrick Thomas O'Brien

Patrick Thomas O'Brien

Actor
Born January 26, 1951 (73 years)
Patrick Thomas O'Brien is an American actor. He is perhaps best known for playing the role of Mr. Dewey, the math teacher from Saved by the Bell.
Movies & Shows on Plex
  • Baywatch
  • Eight Days a Week
  • Silk Stalkings
  • Pensacola: Wings of Gold
  • Inhabited
  • The Brainiacs.com
  • Sold Out
  • Marilyn and Me
Known For
  • Airborne
  • Eight Days a Week
  • Rescuing Christmas
  • Sold Out
  • The Brainiacs.com
  • The Personals

Filmography

2023
Rescuing Christmas · as Chuck
2022
Angry Neighbors · as Jeff Jefferson
2021
The Last Son · as Bartender
2021
Sold Out · as Wayne
2020
Saved by the Bell (2020) (TV Series) · as Mr. Dewey
2017
Project Eden · as Stephen Erickson
2016
Love Always, Santa · as Ferris Wheel Operator
2009
Nobody · as Dr. Weinstein
2008
2008
Uncross the Stars · as Priest
2005
It's Always Sunny in Philadelphia (TV Series) · as Associate
2004
Dr. Vegas (TV Series) · as Burns
2004
Phil of the Future (TV Series) · as Mr. Fleet
2004
Win a Date with Tad Hamilton! · as Father Newell
2004
Drake & Josh (TV Series) · as Minister
2003
Intolerable Cruelty · as Bailiff
2003
Carnivàle (TV Series) · as Clark
2003
2003
Inhabited · as Mr. Kelly
2003
L.A. Dragnet (TV Series) · as Janitor
2002
Catch Me If You Can · as Mr. Hendricks
2002
MDs (TV Series) · as Mr. Lumly
2002
Push, Nevada (TV Series) · as Cast
2002
Monk (TV Series) · as Brent Donovan
2001
Reba (TV Series)
2001
Dead Last (TV Series) · as Jack
2001
State of Grace (TV Series) · as Cast
2000
The Brainiacs.com · as Mr. Greenmail
2000
CSI: Crime Scene Investigation (TV Series) · as Edward Cormier
2000
Gilmore Girls (TV Series) · as Brian's Dad
2000
Son of the Beach (TV Series)
2000
Malcolm in the Middle (TV Series) · as Dad Driver
1999
Stuart Little · as Uncle Stretch
1999
Roswell (TV Series) · as Minister
1999
The West Wing (TV Series) · as Hanson
1999
Me and Will · as Hick Two
1999
Providence (TV Series) · as Dr. Smithers
1998
Pleasantville · as Roy
1998
Felicity (TV Series) · as Dan Waldron
1998
Dead Man on Campus · as Priest
1998
For Your Love (TV Series) · as Mr. Spencer
1997
Eight Days a Week · as Erica's Father
1997
Working (TV Series) · as Carl
1997
Kiss the Girls · as Reporter
1997
Union Square (TV Series)
1997
Dharma & Greg (TV Series) · as Roger
1997
Pensacola: Wings of Gold (TV Series) · as Cast
1996
Sabrina, The Teenage Witch (TV Series) · as Cupid
1996
7th Heaven (TV Series) · as Professor Valentine
1996
Boston Common (TV Series) · as Ron
1995
JAG (TV Series) · as Alfred
1995
Caroline in the City (TV Series) · as Councilman Hardy
1995
Maybe This Time (TV Series) · as James Howell
1995
The Naked Truth (TV Series) · as Lab Man
1995
Girl in the Cadillac · as Ticket Man
1995
Night Stand (TV Series) · as Neil
1995
Forget Paris · as Angry Fan
1995
Sliders (TV Series) · as Jake
1995
The Brady Bunch Movie · as Auctioneer
1995
The Wayans Bros. (TV Series) · as Mr. Webster
1995
Cybill (TV Series)
1994
ER (TV Series) · as Carmichael
1994
The Boys are Back (TV Series) · as Teacher
1994
Wagons East · as Stranger
1994
1993
Airborne · as Uncle Louis
1993
1993
Saved by the Bell: The New Class (TV Series) · as Mr. Dewey
1993
The John Larroquette Show (TV Series) · as Mr. Hunter
1993
Getting By (TV Series) · as Butler
1993
Babylon 5 (TV Series) · as Cart Owner
1992
Picket Fences (TV Series) · as John Vermette
1992
The Larry Sanders Show (TV Series) · as Carl Henckel
1991
Silk Stalkings (TV Series) · as Mr. Petrie
1991
Marilyn and Me · as Casting Director
1991
Step by Step (TV Series) · as Reverend
1991
Home Improvement (TV Series) · as Ink Ingram
1991
Switched at Birth · as Dr. Purchio
1991
Driven to Kill · as Mobsters
1990
1990
Camp Cucamonga · as Virgil
1990
Babes (TV Series) · as Rusty
1990
Parker Lewis Can't Lose (TV Series) · as Mr. Kubiac
1990
Equal Justice (TV Series) · as Thornell Katz
1989
Dragnet (1989) (TV Series) · as Wally Tilson
1989
Family Matters (TV Series) · as Mr. Denton
1989
Life Goes On (TV Series) · as Father Mcmichaels
1989
Saved by the Bell (TV Series) · as Mr. Dewey
1989
UHF · as Satan
1989
Baywatch (TV Series)
1988
The Wonder Years (TV Series) · as Mr. Santa
1987
1987
Hooperman (TV Series) · as Man In Tie
1987
Married... with Children (TV Series) · as Wally
1986
Easy Street (TV Series) · as Don Martin
1984
1st & Ten (TV Series) · as Anthony Smalss
1984
Night Court (TV Series) · as Ernie Carter
1983
1983
Jennifer Slept Here (TV Series) · as Minister
1982
The Personals · as Jay
1979
The Facts of Life (TV Series)

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