From Wikipedia the free encyclopedia Mike Doyle is an American actor screenwriter director and producer He is best known for his recurring roles in the television series Law amp Order Special Victims Unit playing Forensics Tech Ryan OHalloran 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 limitedrelease 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 gaythemed 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 OHalloran on the show He recently guest starred in the Criminal Minds episode A Rite of Passage as well as the In Plain Sight episode Coma Chameleon He also appeared alongside Nicole Kidman and Aaron Eckhart in Rabbit Hole