John O'Brien

Acting

Biography

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Known For

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8.2

Grey's Anatomy

Lab Tech Jeffrey

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7.6

NCIS

Bruce

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8.2

Shameless

Father Monroe

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8.3

Criminal Minds

Dr. Meyer

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8.4

Friends

Airline Employee

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8.4

The X-Files

Missionary #2

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8.0

S.W.A.T.

Weber

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8.2

9-1-1

Rod Billings

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7.4

Two and a Half Men

Waiter

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7.9

Desperate Housewives

Dr. Wheeler

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John O'Brien

Biography

Known For

Grey's Anatomy

NCIS

Shameless

Criminal Minds

Friends

The X-Files

S.W.A.T.

9-1-1

Two and a Half Men

Desperate Housewives

Cheaper by the Dozen

This Game's Called Murder

Perry Mason

Bob Hearts Abishola

Dirty John

Light as a Feather

9-1-1

S.W.A.T.

The Last Heist

Superstore

Transparent

Young & Hungry

The Crazy Ones

Mom

The Mindy Project

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

Being Flynn

Austin & Ally

Workaholics

Shameless