John O'Brien

John O'Brien

Actor 1993–2022 (29 year career)
7.1 avg rating

Known For

Filmography

Acting (56)

·

Television (48)

Perry Mason

Perry Mason

2020

as Ernie Magnuson

7.2
Bob Hearts Abishola

Bob Hearts Abishola

2019

as James

7.5
9-1-1

9-1-1

2018

as Rod Billings

8.2
Dirty John

Dirty John

2018

as Cameron Scott

6.8
Light as a Feather

Light as a Feather

2018

as Reverend Fahey

7.6
S.W.A.T.

S.W.A.T.

2017

as Weber

8.0
Superstore

Superstore

2015

as Mike

7.5
Transparent

Transparent

2014

as Professor

6.3
Young & Hungry

Young & Hungry

2014

as Mr. Klepfer

6.7
Mom

Mom

2013

as Waiter

7.3
The Crazy Ones

The Crazy Ones

2013

as Larry

6.1
The Mindy Project

The Mindy Project

2012

as Dr. Jones

6.2
Don't Trust the B---- in Apartment 23

Don't Trust the B---- in Apartment 23

2012

as Tom

6.8
Shameless

Shameless

2011

as Father Monroe

8.2
Austin & Ally

Austin & Ally

2011

as Mr. Neidermeyer

7.8
Workaholics

Workaholics

2011

as Doctor

7.4
Pretty Little Liars

Pretty Little Liars

2010

as Principal Hackett

8.0
Victorious

Victorious

2010

as Mr. Mooney

8.2
Law & Order: LA

Law & Order: LA

2010

as Scott Hancox

6.9
Better With You

Better With You

2010

as Florist

6.5
Community

Community

2009

as Chaplin

8.0
Eleventh Hour

Eleventh Hour

2008

as Manager

6.6
The Middleman

The Middleman

2008

as Newscaster

7.7
Chuck

Chuck

2007

as Older CIA Tech

7.7
Mad Men

Mad Men

2007

as Phil Kennedy

8.1
Ugly Betty

Ugly Betty

2006

as Joe of Happy Homes

6.4
Grey's Anatomy

Grey's Anatomy

2005

as Lab Tech Jeffrey

8.2
Criminal Minds

Criminal Minds

2005

as Dr. Meyer

8.3
Medium

Medium

2005

as Hotel Clerk

7.5
Desperate Housewives

Desperate Housewives

2004

as Dr. Wheeler

7.9
Boston Legal

Boston Legal

2004

as Clerk #2

7.9
NCIS

NCIS

2003

as Bruce

7.6
Two and a Half Men

Two and a Half Men

2003

as Waiter

7.4
Monk

Monk

2002

as Maitre'd

7.9
What I Like About You

What I Like About You

2002

as Dr. Thompson

6.4
Less than Perfect

Less than Perfect

2002

as Executive

6.8
Scrubs

Scrubs

2001

as Man

7.9
Scrubs

Scrubs

2001

as Man

10.0
Malcolm in the Middle

Malcolm in the Middle

2000

as Sales Clerk

8.5
The West Wing

The West Wing

1999

as Reporter

8.2
BeastMaster

BeastMaster

1999

as Village leader

6.3
Will & Grace

Will & Grace

1998

as Salesperson

6.8
The Practice

The Practice

1997

as Foreman

7.6
Ally McBeal

Ally McBeal

1997

as Waiter

6.5
Clueless

Clueless

1996

as Zombie

6.2
The Drew Carey Show

The Drew Carey Show

1995

as Rick

6.5
Friends

Friends

1994

as Airline Employee

8.4
The X-Files

The X-Files

1993

as Missionary #2

8.4