Dean Winters
Biography
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.
Also Known As
Movie Appearances

Christmas vs The Walters
as Brian Walters
2021

Winter of Frozen Dreams
as Ken Curtis
2009

Hellraiser: Hellseeker
as Trevor Gooden
2002

Bristol Boys
as Randy
2005

Splinterheads
as Reggie
2009

Snipes
as Bobby Starr
2001

Brooklyn Bound
as Danny
2005

The Out-Laws
as Vince Millen
2023

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

The Devil You Know
as Jake Kelly
2013

Don Peyote
as Gun Dealer
2014
Starwater
2001

John Wick
as Avi
2014

Undercover Angel
as Harrison Tyler
1999

Strip Search
as Ned McGrath
2004

Today's Special
as Steve
2009

Love Rome
as Dean
2004

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

Zo
as Ryan O'Reily
2024

Teenage Mutant Ninja Turtles: Out of the Shadows
as Bartender
2016
TV Appearances

Third Watch
as Bill Stram
1999

CSI: Miami
as Raymond Caine
2002

Deadline
as Des Lonegan
2000

Law & Order: Special Victims Unit
as Brian Cassidy
1999

Millennium
as Mr. Crocell
1996

30 Rock
as Dennis Duffy
2006

Rescue Me
as Johnny Gavin
2004

Homicide: Life on the Street
as Tom Marans
1993

The Twilight Zone
as Gordon
2002

Oz
as Ryan O'Reily
1997

Battle Creek
as Detective Russ Agnew
2015

Sex and the City
as John McFadden
1998
