Forensics Technician Ryan O'Halloran is a fictional character portrayed by Mike Doyle in the TV series Law & Order: Special Victims Unit.
In the first episode they appeared in, titled Prodigy (season 3), they were 29 years old.
They appear in 53 episodes out of a total of 551 aired so far
Episodes53
Prodigy
episode S3.E13 january 2002Benson and Stabler have the gruesome task of identifying the remains of a man and a woman who were stabbed in a park.Choice
episode S5.E7 november 2003After a man is arrested for attacking his pregnant wife and then seeks to have her charged with neglect for drinking during her pregnancy, Benson learns that this is not the first time a child has been exposed to the devastating repercussions of the woman's uncontrolled alcoholism.Control
episode S5.E9 november 2003The Detectives find themselves hunting for a person who cut off a man's genitals and left him to die.Ritual
episode S5.E14 february 2004Two garbage collectors run into what they first think is a scene of animal sacrifice.Careless
episode S5.E18 march 2004After a young boy dies during a church vigil, Tutuola and Munch investigate the boy's foster parents and social worker for neglect.Lowdown
episode S5.E20 april 2004When the death of a prosecutor is staged using information gleaned from a coworker's caseload, Novak endangers her career to obtain a confession.Criminal
episode S5.E21 april 2004When it becomes obvious that a forensics expert raped and murdered a student, the investigation focuses on a criminology professor that Cragen arrested decades earlier for similar crimes.Bound
episode S5.E23 may 2004The investigation into the murder of a senior citizen leads the squad to suspect that the killer is actually a serial killer who preys on elderly women.Debt
episode S6.E2 september 2004As Benson and Stabler investigate the disappearance of a mother and her teen-aged daughter, they uncover a conspiracy between a corrupt immigration attorney and gangsters running a prostitution ring that is staffed by women they have smuggled into the country and imprisoned as sex slaves.Scavenger
episode S6.E4 october 2004The entire SVU squad races against the clock to solve the puzzles and uncover clues scattered throughout NYC by a serial killer who is taunting them to find him and the next victims on his list.Conscience
episode S6.E6 november 2004A young boy is kidnapped and a local pedophile becomes the main subject. But what is the truth behind the murder?Weak
episode S6.E9 november 2004Benson enlists the help of a former cop turned psychiatrist in apprehending a serial rapist and murderer who attacks disabled women.Haunted
episode S6.E10 december 2004After nearly losing his life to save a young boy from a pair of gangbangers, Fin is declared a hero... until a woman surfaces from his days in Narcotics.Quarry
episode S6.E13 january 2005An old body of a young kid is found and there seems to be a link to a soon-to-be-executed pedophile. Can the squad find the link between him and the body, or is there a more sinister link?Game
episode S6.E14 february 2005A prostitute is violently murdered and outside of a weird phone call there seems to be little to no motive. Then Stabler's son notices some similarities to a GTA style video game.Ghost
episode S6.E16 february 2005When a wealthy couple is found dead in their home, Benson and Stabler soon realize that their deaths are connected to a drug smuggling ring. Eventually the road leads back to the same drug dealers who forced a former assistant district attorney into hiding, and Alex Cabot comes home to face her enemies.Intoxicated
episode S6.E19 march 2005When a mom finds her 15-year-old daughter in bed with a 21-year-old man, she goes to the SVU to report rape.Night
episode S6.E20 may 2005Benson and Stabler have a suspect (Alfred Molina) but not enough evidence when a serial rapist preys on undocumented immigrant women, and Tracy Kibre (Bebe Newirth) is brought in to work on the case.Blood
episode S6.E21 may 2005After a young woman's baby is tossed out of a car, Benson and Stabler investigate to find out what happened, and after learning the young woman is addicted to prescription painkillers, their investigation leads them to an elderly woman named Jenny Rogers, who lives with her son Kevin and daughter-in-law Carol. The young woman finally identifies Carol Rogers as the person who sold her the drugs, but when detectives go to confront Carol, they find her body and are left trying to uncover who really killed Carol.Demons
episode S7.E1 september 2005Det. Stabler goes undercover to determine if a recent parolee is reverting to his rapist urges.Design
episode S7.E2 september 2005A woman claims rape by a wealthy scientist, but upon further investigation, she's not as much of a victim as it appears.Strain
episode S7.E5 october 2005An AIDS activist is suspected of murdering a gay couple, and Detective Tutuola discovers something about a family member.Raw
episode S7.E6 november 2005An investigation of a horrific school sniper attack leads the team to a particularly obnoxious Neo-Nazi group.Storm
episode S7.E10 november 2005Detectives pursue a child molester who kidnapped 3 orphans from Hurricane Katrina, and discover a more dangerous threat.Blast
episode S7.E13 january 2006The abduction of a little girl turns even more desperate when it's found she's suffering from an undiagnosed leukemia.Taboo
episode S7.E14 january 2006When a baby boy is discovered in the rubbish, detectives Benson and Stabler use a t-shirt found at the scene to trace the crime back to a well-to-do college student.Manipulated
episode S7.E15 february 2006A successful lawyer's secret life as an exotic dancer is revealed to her boss and her fiancé after she and a stripper friend are found murdered.Gone
episode S7.E16 february 2006A female student from Montreal goes missing during a class trip to New York City after she spends a night partying with three cocky prep school boys.Fault
episode S7.E19 april 2006A serial paedophile murders members of a family and kidnaps the two younger children.Fat
episode S7.E20 may 2006Stabler and his one-time partner, Lucius Blaine, investigate a case dealing with childhood obesity.Recall
episode S8.E3 october 2006Stabler and his new partner go after a possible serial rapist with the help of an unlikely victim from 30 years earlier.Cage
episode S8.E8 november 2006SVU investigates a shady private adoption agency after two undocumented children are found deserted near an automobile accident.Scheherazade
episode S8.E10 january 2007A dying man's confessions to Benson and Stabler reveal secrets about the true identity of his estranged daughter and other, more disturbing secrets.Loophole
episode S8.E13 february 2007An investigation into a potential child pornography case actually uncovers a chemical company testing possibly toxic products on a group of building tenants.Haystack
episode S8.E15 february 2007A woman accused of killing her baby commits suicide after being interrogated by an overzealous television reporter. It later turns out that the baby was kidnapped, perhaps by the baby's biological father.Philadelphia
episode S8.E16 february 2007Olivia finds her biological brother in New Jersey, but discovers that he is under investigation by local police for sexual crimes. But her obsession with finding him puts another investigation in jeopardy as well as her partnership with Elliot.Sin
episode S8.E17 march 2007A gay male sex worker is murdered, and the investigation reveals that a pastor who preaches extreme intolerance toward homosexuals may have had a relationship with him.Florida
episode S8.E19 may 2007Benson (Mariska Hargitay) hears from her half-brother (Michael Weston), who is on the run because of sexual assault charges. He continues to claim his innocence, though because evidence continues to pile up against him, Benson reluctantly agrees to help in the investigation.Annihilated
episode S8.E20 may 2007The investigation of a bride-to-be's murder uncovers a man's double life; a turn in the case rattles Stabler, who turns to his wife and children for comfort.Svengali
episode S9.E6 november 2007A grisly murder scene at the bottom of an elevator shaft leads SVU detectives to a group of individuals who are under the spell of a charismatic, imprisoned serial killer.Blinded
episode S9.E7 november 2007Stabler suffers temporary blindness after an injury bringing a sexual predator who suffers from schizophrenia into custody. Benson's special interest in the case puts her at odds with ADA Novak, who has a personal agenda of her own.Snitch
episode S9.E10 december 2007A 15-year-old African immigrant is murdered and the evidence points to a neighborhood thug who intimidates murder witnesses. However, the case is complicated by the discovery that she was married to a 35-year-old polygamist.Unorthodox
episode S9.E13 january 2008After a young boy is hospitalized for blood loss following a rape, Stabler and Munch focus on a Hasidic order whose reluctance to cooperate may lead the investigation away from the real perpetrator.Authority
episode S9.E17 april 2008A man accused of impersonating a police officer over a telephone and telling a fast food manager to sexually assault an employee is found not guilty, and as a result becomes a vocal crusader telling other people to defy authority figures.Trade
episode S9.E18 may 2008A wealthy, successful coffee trader and his son are both suspects in a young woman's murder, when evidence suggests that the woman was sexually involved with both men.Cold
episode S9.E19 may 2008Detective Lake is accused of killing a police officer, and SVU soon discovers that he has been investigating a 10-year-old cold rape case without anyone's knowledge.Babes
episode S10.E6 november 2008The grisly murder of a homeless man leads detectives to four high school girls with a pregnancy pact. But after their pact is revealed, somebody drives the girls' ringleader to an apparent suicide.Persona
episode S10.E8 november 2008While trying to stop a case of domestic abuse, Benson crosses paths with a woman who has been a fugitive for over 30 years and claims that she was also a domestic abuse victim.Lead
episode S10.E15 march 2009A pediatrician who is a convicted child molester is killed after his trial, but is the guilty party mentally competent to stand trial? Alex Cabot returns to the DA's office to prosecute the accused.Ballerina
episode S10.E16 march 2009Detectives suspect that a murder suspect was thrown out of a window to his death, and their investigation focuses on the suspect's wife, her nephew who lives with them, and their unusual special relationship.Selfish
episode S10.E19 april 2009An immature, irresponsible young mother is assumed to have killed her child, but it turns out to be part of a measles outbreak. A.D.A. Cabot then goes after the mother of the child who started the outbreak, who refused to immunize him.Crush
episode S10.E20 may 2009Over the course of a complex "sexting" case involving an abused teenage girl, the team encounters a corrupt family court judge who hands down unusually harsh sentences for borderline sexual offenses.Zebras
episode S10.E22 june 2009CSU Stuckey's careless error causes a deranged killer to go free on a technicality. Later, more signature killings emerge, and more people connected to the case may be targeted.
- Prodigy
- Choice
- Control
- Ritual
- Careless
- Lowdown
- Criminal
- Bound
- Debt
- Scavenger
- Conscience
- Weak
- Haunted
- Quarry
- Game
- Ghost
- Intoxicated
- Night
- Blood
- Demons
- Design
- Strain
- Raw
- Storm
- Blast
- Taboo
- Manipulated
- Gone
- Fault
- Fat
- Recall
- Cage
- Scheherazade
- Loophole
- Haystack
- Philadelphia
- Sin
- Florida
- Annihilated
- Svengali
- Blinded
- Snitch
- Unorthodox
- Authority
- Trade
- Cold
- Babes
- Persona
- Lead
- Ballerina
- Selfish
- Crush
- Zebras