
Dean Winters
Acting
Dean Winters (born July 20, 1964) is an American actor, who is known for his roles as Bobby on the YouTube series Wayne, Detective Brian Cassidy on Law & Order: SVU, Detective Russ Agnew on Battle Creek, 'The Vulture' Detective Pembroke on Brooklyn Nine-Nine, Charley Dixon on FOX's Terminator: The Sarah Connor Chronicles, Dennis Duffy on NBC's 30 Rock, Johnny Gavin on FX's Rescue Me, Ryan O'Reily on HBO's Oz. He also portrays "Mayhem" in Allstate commercials.
TV Shows(34)

The Fall and Rise of Reggie Dinkins
"FDNY: Chicago" Star
2026

Monsieur Spade
Father Morgan
2024

So Help Me Todd
Dick Frank
2022

Joe vs Carole
Jeff Lowe
2022

Girls5eva
Nick
2021

City on a Hill
Ralph Hook
2019

Wayne
Bobby
2019

American Gods
Mr. Town
2017

Rapunzel's Tangled Adventure
Andrew (voice)
2017

Berlin Station
Birdman
2016

Divorce
Tony Silvercreek
2016

Unbreakable Kimmy Schmidt
Bunny (voice)
2015

Battle Creek
Detective Russ Agnew
2015

Last Week Tonight with John Oliver
Brett
2014

Brooklyn Nine-Nine
Keith 'The Vulture' Pembroke
2013

Up All Night
Casey Brinkley
2011

Life on Mars
Vic Tyler
2008

Terminator: The Sarah Connor Chronicles
Charley Dixon
2008

30 Rock
Dennis Duffy
2006

American Dad!
(voice)
2005

Rescue Me
Johnny Gavin
2004

CSI: Miami
Raymond Caine
2002

The Twilight Zone
Gordon
2002

Law & Order: Criminal Intent
Mike Stoat
2001

Deadline
Des Lonegan
2000

Third Watch
Bill Stram
1999

Law & Order: Special Victims Unit
Brian Cassidy
1999

Sex and the City
John McFadden
1998

Oz
Ryan O'Reily
1997

Millennium
Mr. Crocell
1996

New York Undercover
Paul Delaney
1994

NYPD Blue
Larry
1993

Homicide: Life on the Street
Tom Marans
1993

Saturday Night Live
Ryan O'Reily (uncredited)
1975
Movies(38)

Eenie Meanie
Mikey
2025

Highest 2 Lowest
Det. Higgins
2025

I Am Luke Perry
Self
2025

Justice League: Crisis on Infinite Earths Part Three
Captain Storm (voice)
2024

Zo
Ryan O'Reily
2024

Chuck Zito: An American Story
Self
2024

The Out-Laws
Vince Millen
2023

Christmas vs The Walters
Brian Walters
2021

DC Showcase: The Losers
Capt. Storm (voice)
2021

Palmer
Jerry
2021

Lost Girls
Dean Bostick
2020

Framing John DeLorean
John Valestra
2019

A Civilized Life
Conway
2018

After Everything
Blake
2018

Father of the Year
Geoff
2018

Rough Night
Detective Frazier
2017

Teenage Mutant Ninja Turtles: Out of the Shadows
Bartender
2016

Don't F*#% With John Wick
Self
2015

John Wick
Avi
2014

Don Peyote
Gun Dealer
2014

The Devil You Know
Jake Kelly
2013
The Worst
Nick
2012

Splinterheads
Reggie
2009

Today's Special
Steve
2009

Winter of Frozen Dreams
Ken Curtis
2009

P.S. I Love You
Tom
2007

Brooklyn Bound
Danny
2005

Bristol Boys
Randy
2005

Love Rome
Dean
2004

Strip Search
Ned McGrath
2004

Hellraiser: Hellseeker
Trevor Gooden
2002

Bullet in the Brain
Bank Robber
2001

Snipes
Bobby Starr
2001
Starwater
2001

Undercover Angel
Harrison Tyler
1999

Lifebreath
Chrystie's Lover
1997

Conspiracy Theory
Cleet
1997
Firehouse
Nick Wilkinson
1996