
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.

John Wick
2014 · as Avi

Conspiracy Theory
1997 · as Cleet

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

Highest 2 Lowest
2025 · as Det. Higgins

Eenie Meanie
2025 · as Mikey

Palmer
2021 · as Jerry

P.S. I Love You
2007 · as Tom

Rough Night
2017 · as Detective Frazier

The Out-Laws
2023 · as Vince Millen

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

Lost Girls
2020 · as Dean Bostick

Hellraiser: Hellseeker
2002 · as Trevor Gooden

Splinterheads
2009 · as Reggie

After Everything
2018 · as Blake

Strip Search
2004 · as Ned McGrath

Framing John DeLorean
2019 · as John Valestra

Undercover Angel
1999 · as Harrison Tyler

I Am Luke Perry
2025 · as Self