Michael Doyle (born September 16, 1972) is an American actor. He is mainly known for his role on Law & Order: Special Victims Unit as Ryan O'Halloran, Adam Guenzel on Oz, and from 2018 to 2023 on New Amsterdam as Martin McIntyre.
Early life and career Doyle attended the Juilliard School as a member of the Drama Division's Group 27 (1994–1998).
On the set of Oz, 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 also appeared as Jamie Perse, a small-time crook, in the 1996 television miniseries Titanic (also starring Peter Gallagher and Catherine Zeta-Jones).
Doyle played Lt. Cmdr. Tom Palatonio in the 2005 action film Phantom Below. His death in the season 10 finale of Law & Order: Special Victims Unit ended a successful six-year run as forensic tech Ryan O'Halloran on the show. He guest starred on episodes of Criminal MindsCriminal Minds episode - A Rite Of Passage Criminal Minds (season 5) and In Plain Sight.In Plain Sight episode - Coma Chameleon In Plain Sight (season 3)
He appeared alongside Nicole Kidman and Aaron Eckhart in 2010's Rabbit Hole. In 2011, the feature film Union Square, co-written and directed by Sundance Film Festival's Grand Jury Award Winner Nancy Savoca, was premiered at the Toronto International Film Festival, which starred Mira Sorvino, Patti Lupone, Michael Rispoli and Tammy Blanchard. He also starred in The Orphan Killer as Marcus Miller Sr. in 2011. He then joined the cast of A Gifted Man as Victor Lantz, an anesthesiologist. He had a recurring role in the 2012 ABC television series 666 Park Avenue.
In 2014, he portrayed songwriter and record producer Bob Crewe in the film of the hit musical Jersey Boys, based on the story of Frankie Valli & the Four Seasons. He also appeared in the music video "I Wanna Get Better" by Jack Antonoff's band Bleachers, alongside Retta. In 2016, Doyle starred as Greg Forrest in the psychological thriller, Amy Makes Three. In 2025, he filmed his third feature Bookends.
Personal life Doyle is gay. He directed the 2019 independent film Almost Love with gay actors in the leading roles.
Filmography +Film Year Title Role Notes 1998 Some Girl Steven 2003 Cutter Chet Watson2004 The Devil and Daniel Webster Luke Laws of Attraction Michael Rawson2005 29th and Gay Andy Griffith Room Service Stone 2006 5up 2down Disco Dave2007 Shortcut to Happiness Luke Heavy Petting James P.S. I Love You Leprechaun 2010 Rabbit Hole Craig2011 Green Lantern Jack Jordan Union Square Bill The Orphan Killer Marcus Miller Sr.2012 Gayby Scott The Exhibitionists George Thornton 2013 You're Not You Tom 2014 Jersey Boys Bob Crewe 2015 The Invitation Tommy2016 Max Steel Jim McGrath Amy Makes Three Greg Forest Unreleased Johnny Frank Garrett's Last Word Adam Redman 2017 XX Chet 2019 Almost Love Director and writer only 2022 Pinball: The Man Who Saved the Game Jack Haber 2023 The Kill Room Rafael Pronto
+Television Year Title Role Notes 1994 ABC Afterschool Special Malcolm Episode: "Magical Make-Over"1996 A Loss of Innocence Jens Eriksen Television film Titanic Jamie Perse Miniseries, 2 episodes 1997 Jenny Dave 1 episode 1999 ER Michael McKenna 1 episode 2000 Sex and the City Mark 2 episodes 2002 Oz Adam Guenzel 4 episodes 2003–2009 Law & Order: Special Victims Unit Forensics Tech Ryan O'Halloran Recurring role, 52 episodes 2003 Ed Joel McHale 1 episode 2005 Tides of War Lieutenant Commander Tom E. Palatonio Television film 2006 Smith Shawn 1 episode 2009 In Treatment Bennett Ryan 1 episode2010 In Plain Sight Wade Guthrie 1 episode Criminal Minds Deputy Ronald Boyd Episode: "A Rite of Passage"2011 The Whole Truth Michael Dalton 2 episodes Lights Out Doctor Brennan 3 episodes 2011–2012A Gifted Man Victor Lantz Recurring role, 11 episodes2012 The Good Wife Officer Mallen 1 episode 666 Park Avenue Frank Alpern 1 episode 2013 Shameless Lanier 2 episodes2014 Rush Dr. Griffin Wagner 1 episode The Blacklist Patrick Chandler 2 episodes Unforgettable John Hibbert 1 episode 2015 Blindspot Nathan Williams 1 episode 2016–2017 Conviction Rodney Landon 2 episodes 2017 Lucifer Bradley 1 episode2018 Narcos: Mexico Thomas Buehl 3 episodes The Romanoffs Brian Norris Episode: "House of Special Purpose" 2018–2023 New Amsterdam Martin McIntyre Recurring role, 29 episodes 2019–2021 City on a Hill Josh Goshen Recurring role, 5 episodes2024 Fallout Bob Spencer Episode: "The End" Law & Order Terry Clausen Episode: "Report Card"
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