
Acting
Mike Doyle (born September 16, 1972) is an American actor, screenwriter, director and producer. He is best known for his recurring roles in the television series Law & Order: Special Victims Unit, playing Forensics Tech Ryan O'Halloran, and Oz, playing Adam Guenzel. It was on the set of Oz that Doyle met George Morfogen, whom he would cast in Shiner, a short film written, produced and directed by Doyle that debuted at the 2006 Tribeca Film Festival. Doyle also wrote and produced the 2003 limited-release film Cutter. Doyle played Lt. Cmdr. Tom Palatonio in the 2005 action film Phantom Below, which is notable for having been released in multiple versions under multiple names which included or excluded gay content depending on the edit (the gay-themed edit was released under the title Tides of War). Also in 2005, he plays a gay coffee barista named Andy in 29th and Gay. On June 2, 2009, The New York Times published an article about Doyle and his tendency to die on screen during his acting roles. His seventh death, in the season 10 finale of Law and Order Special Victims Unit, ended a successful six year run as forensic tech Ryan O’Halloran on the show.

The Mentalist
2008

Law & Order: Special Victims Unit
1999

Criminal Minds
2005

Law & Order
1990

The Blacklist
2013

Shameless
2011

The Good Wife
2009

Lucifer
2016

Elementary
2012

ER
1994

Sex and the City
1998

Elsbeth
2024

Fallout
2024

Blindspot
2015

Unforgettable
2011

Oz
1997

New Amsterdam
2018

In Treatment
2008

In Plain Sight
2008

Stars in the House
2020

Green Lantern
2011

The Romanoffs
2018

P.S. I Love You
2007

Conviction
2016

Titanic
1996

Jenny
1997

The Kill Room
2023

Rabbit Hole
2010

The Invitation
2016

Shortcut to Happiness
2007

Laws of Attraction
2004

Max Steel
2016

Let Them All Talk
2020

Jersey Boys
2014

XX
2017

You're Not You
2014