Robert Clark Gregg Jr. (born April 2, 1962) is an American actor, director, and screenwriter. He is best known for portraying Phil Coulson in films and television series set in the Marvel Cinematic Universe from 2008 to 2021. Gregg also voiced Coulson in the animated television series Ultimate Spider-Man (2012–2017) and the video games Lego Marvel Super Heroes (2013), Marvel Heroes (2013), and Lego Marvel's Avengers (2016).
Gregg is also known for his role as FBI Special Agent Mike Casper on the NBC political drama series The West Wing (2001–2004) and as Richard, the ex-husband of Christine Campbell, in the CBS sitcom The New Adventures of Old Christine (2006–2010).
He wrote the horror film What Lies Beneath (2000) and wrote and directed the black comedy Choke (2008) and the comedy-drama Trust Me (2013). He appeared in the films The Adventures of Sebastian Cole (1998), One Hour Photo (2002), We Were Soldiers (2002), In Good Company (2004), When a Stranger Calls (2006), 500 Days of Summer (2009), Much Ado About Nothing (2012), The To Do List (2013), Labour Day (2013), Live by Night (2016), and Being the Ricardos (2021).
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Good Night, and Good Luck
Don Hollenbeck
2025

Murderbot
Lieutenant · (3 episodes)
2025

You Know: Uncovering What Lies Beneath
Self
2025

G20
Vice President Harold Moseley
2025

Zero Day
Robert Lyndon · (2 episodes)
2025

Good Men
Self
2024

Thelma
Alan
2024

Painkiller
Arthur Sackler · (6 episodes)
2023

Florida Man
Ketcher · (6 episodes)
2023

Will Trent
Arthur Highsmith · (1 episode)
2023

The Anthrax Attacks: In the Shadow of 9/11
Dr. Bruce Ivins
2022

How I Met Your Father
Nick · (3 episodes)
2022

Slugfest
Terry Stewart · (10 episodes)
2021

Being the Ricardos
Howard Wenke
2021

What If...?
Agent Coulson (voice) · (2 episodes)
2021

What If...?
Agent Phil Coulson (voice) · (1 episode)
2021

Moxie
John
2021

Marvel Studios Legends
Phil Coulson (archive footage) (uncredited) · (2 episodes)
2021

Chadwick Boseman: A Tribute for a King
Self - Actor, "The Avengers"
2020

Snowpiercer
Admiral Anton Milius · (10 episodes)
2020

Run Sweetheart Run
James R. Fuller
2020

Celebrating Marvel's Stan Lee
Self - Host
2019

Captain Marvel
Agent Coulson
2019

The Conners
Ron · (2 episodes)
2018

Spinning Man
Paul
2018

Live by Night
Calvin Bondurant
2016

Marvel's Agents of S.H.I.E.L.D.: Slingshot
Phil Coulson · (1 episode)
2016

Marvel's Agents of S.H.I.E.L.D.: Academy
(5 episodes)
2016

Too Legit
Dr. Mekel
2016

Marvel's Captain America: 75 Heroic Years
Self
2016

BattleBots
Judge · (10 episodes)
2015

Lip Sync Battle
Self · (1 episode)
2015

The Thrilling Adventure Hour Live
Mason Grantz
2015

Marvel: 75 Years, from Pulp to Pop!
Self
2014

Marvel Studios: Assembling a Universe
Self
2014

Late Night with Seth Meyers
Self · (1 episode)
2014

Labor Day
Gerald
2013

Brightest Star
Mr. Markovic
2013

Marvel's Agents of S.H.I.E.L.D.
Phil Coulson · (123 episodes)
2013

Marvel's Agents of S.H.I.E.L.D.
Sarge · (13 episodes)
2013

The To Do List
Judge Klark
2013

Much Ado About Nothing
Leonato
2013

Trust Me
Howard
2013

Very Good Girls
Edward Berger
2013

Nimrod and Stinky's Antarctic Adventure
Nat
2012

Comedy Bang! Bang!
Self · (1 episode)
2012

The Avengers
Agent Phil Coulson
2012

Marvel's Ultimate Spider-Man
Phil Coulson (voice) · (52 episodes)
2012

Honest Trailers
Phil Coulson (archive footage) · (1 episode)
2012

Marvel One-Shot: A Funny Thing Happened on the Way to Thor's Hammer
Agent Phil Coulson
2011

Marvel One-Shot: The Consultant
Agent Phil Coulson
2011

Mr. Popper's Penguins
Nat Jones
2011

Thor
Agent Coulson
2011

The Talk
(1 episode)
2010

Iron Man 2
Agent Coulson
2010

(500) Days of Summer
Vance
2009

Choke
Lord High Charlie
2008

Iron Man
Agent Coulson
2008

In the Land of Women
Nelson Hardwicke
2007

The Air I Breathe
Henry
2007

The Road to Christmas
Tom Pullman
2006

Hoot
Muckle
2006

Bickford Shmeckler's Cool Ideas
Publisher
2006

The New Adventures of Old Christine
Richard Campbell · (88 episodes)
2006

When a Stranger Calls
Ben Johnson
2006

Criminal Minds
Ray Madison · (2 episodes)
2005

In Good Company
Steckle
2004

CSI: NY
Allen McShane · (2 episodes)
2004

Spartan
Miller
2004

In Enemy Hands
Teddy Goodman
2004

The Human Stain
Nelson Primus
2003

11:14
Officer Hannagan
2003

Northfork
Mr. Hadfield
2003

Live from Baghdad
Eason Jordan
2002

One Hour Photo
Det. Paul Outerbridge
2002

Lovely & Amazing
Bill
2002

The Shield
William Faulks · (2 episodes)
2002

We Were Soldiers
Capt. Tom Metsker
2002

My Sister's Keeper
Harvey
2002

A.I. Artificial Intelligence
Supernerd
2001

State and Main
Doug Mackenzie
2000

Magnolia
WDKK Floor Director
1999

The Adventures of Young Indiana Jones: Spring Break Adventure
Dickinson
1999

The West Wing
Michael Casper · (8 episodes)
1999

Six Ways to Sunday
Benjamin Taft
1999

Sports Night
(2 episodes)
1998

Will & Grace
Cam · (1 episode)
1998

The Adventures of Sebastian Cole
Hank / Henrietta
1998

Sex and the City
Harris Bragen · (1 episode)
1998

The Spanish Prisoner
FBI Sniper
1997

The Last Time I Committed Suicide
Cop #1
1997

The Practice
Bob McGrath · (1 episode)
1997

Hot Sauce
Ex-Boyfriend
1997
Mailman
Dave
1996

Central Park West
(1 episode)
1995

The Usual Suspects
Dr. Walters
1995

Above Suspicion
Randy
1995

Tyson
Kevin Rooney
1995

Touched by an Angel
Don Dudley · (1 episode)
1994

Ride Me
Jake Shank
1994

Clear and Present Danger
Staff Sergeant
1994

I Love Trouble
Darryl Beekman, Jr.
1994

Under Lock and Key
1994

The Young Indiana Jones Chronicles
Dickinson · (1 episode)
1992

Lana in Love
Marty
1991

A Woman Named Jackie
Ken O'Donnell · (2 episodes)
1991

The Commish
(1 episode)
1991

Law & Order
Patrick Dunne · (1 episode)
1990

Shannon's Deal
(2 episodes)
1990

Fat Man and Little Boy
Douglas Panton
1989

Things Change
Stage Manager
1988

Lip Service
Stage Manager
1988
The Artist
Harry Kendall Thaw · (1 episode)