|Chad Duell as Michael Corinthos|
|Portrayed by:|| Blake & Dylan Hopkins (1997-2001) |
Tiarnan Cunningham (2001-2002)
Dylan Cash (2002-2008)
Drew Garrett (2009-2010)
Chad Duell (2010-)
|Duration:|| 1997-2008 & 2009-|
|First appearance:|| December 29, 1997|
|Created by:||Robert Guza Jr.|
|Family:|| Benson family |
|Full name:|| Michael Morgan Corinthos III|
|Other names:|| Michael Morgan |
Michael Alan Quartermaine 
|Born:|| December 29, 1991 |
(originally December 29, 1997)
|Occupation:|| CEO of ELQ|
|Residence:|| Quartermaine Mansion |
66 Harbor View Rd
Port Charles, New York
- Blake & Dylan Hopkins (01/1997-06/2001; recurring)
- Tiarnan Cunningham (06/2001-03/2002; recurring)
- Dylan Cash (03/2002-04/2005 & 12/2008; recurring & 04/2005-06/2008; contract)
- Drew Garret (04/2009-04/2010)
- Chad Duell (04/2010-present)
Michael Morgan Corinthos III is the son of the late Alan "A.J." Quartermaine Jr. and Caroline "Carly" Benson. He was born on December 29, 1997. He was later adopted by Michael "Sonny" Corinthos Jr. during Carly's on/off marriages to him. Michael has seven half-siblings Dante Falconeri, Kristina Davis-Corinthos, Morgan Corinthos (deceased), Lila McCall (deceased), Josslyn Jacks, Avery Corinthos and Donna Corinthos.
At the time of his birth, Carly was unsure if her on/off boyfriend Anthony "Tony" Jones or her one night stand A.J. was the father. Both A.J. and Tony were threaten to take custody of her child so she told everyone that Jason Morgan was the father. Carly was staying with Jason at the time in order to keep custody of the baby from Tony and A.J. Jason arrived home one night to find Carly passed out on the floor and rushed her to the hospital. The baby was delivered by emergency c-section and required heart surgery shortly after birth. After birth Tony discovered that he couldn't be the father because of the blood type. A.J. assumed that Jason was the father because he shared that same blood type.
After Carly and the baby were released from the hospital, Carly left town as she was suffering postpartum depression. Carly returned about a month later. Carly returned just time for the baby's christening where Jason named him Michael. Carly returns to find that Jason has been raising him with his recently returned girlfriend Robin Scorpio. Carly steps into raise Michael but the two remain living with Jason. A few weeks later, Michael is kidnapped. It is later revealed that Tony had kidnapped Michael because he was suffering a brake down after learning that Michael wasn't his son and he also believed that Jason and Carly are unfit. Robin discovered that Tony had kidnapped him and Tony then held Robin hostage. Jason soon discover and resused both Robin and Michael.
Carly is reunited with Michael. Tony goes on trail for kidnapping Michael but get off easy and Carly then shot Tony and Carly is shipped off to a mental hospital. Jason and Robin then raise Michael over the next few months. When Carly is released she returns to live with Jason, Robin and Michael. It is clear that Carly want to be with Jason and causes problems in Jason and Robin's relationship. Robin wants to free Jason from Carly and decides to tell A.J. about Michael's true paternity. Jason ends things with Robin for doing this and she leaves town.
Carly and Michael move into the Quartermaine mansion after A.J. blackmails Carly into doing so. A.J. is also blackmail Carly into marriage to hold on to custody of Michael. Jason goes to court for Michael and custody is awarded to the A.J., Carly and Jason. A.J. hated that Michael prefered Jason over him and Jason feared that his hatred for A.J. would hurt Michael so he signed away his rights to Michael. Even though Carly was married to A.J., she was planning to leave him and reunite with Jason. But Carly witnessed Jason comforting Elizabeth Webber over the death of her boyfriend Lucas Lorenzo "Lucky" Spencer Jr. Carly misunderstood the moment and slept with Sonny. Jason then left town unable to deal with detrayal.
Carly became pregnant by Sonny following their one night stand. Sonny not wanting the Quartermaine's to raise his child blackmails A.J. into letting Carly and Michael. Carly and Michael move in with Sonny. Carly and Sonny fall in over throught out the pregnancy but Carly loses the baby following a fight between Carly and A.J. Carly and Sonny marry and Sonny adopts Michael. Carly and Sonny's marriage is on/off over the next few years. Jason returns to town and makes up with Carly and Sonny. Even with Carly and Sonny's on/off marriage they do welcome another child, a son Morgan Stone Corinthos on October 24, 2003. Also around this A.J. leaves town. Soon after Morgan's birth both Carly and Sonny have affairs and divorced. In 2004, it is revealed that Sonny is the father of Alexis Davis's daughter Kristina Davis-Corinthos and Sonny gets Samantha "Sam" McCall pregnant. Sam's daughter Lila McCall is stillborn.
In February 2005, Michael, Kristina and Morgan are kidnapped from Sonny's house. After a few weeks, Kristina and Morgan are returned but Michael is presumed dead and Carly and Sonny are sent a picture of Michael's 'dead' boby. It is revealed that A.J. had kidnapped the three children in order to get Michael. A.J. then sneaks Michael out of the country. But the two do have return to Port Charles as Jason along with his girlfriend Sam are trackdown leads as they didn't believe Michael to be dead. Jason and A.J. have a fight at the Quartermaine mansion and both fall with a staircase that leaves A.J. with a broken back. A.J. is later murdered in the hospital.
Carly marries Jasper "Jax" Jacks in 2007. Carly and the boys move in with Jax. In April 2008, while Michael at Sonny's coffee warehouse, Michael is shot by a gunman that was aiming for Sonny. Michael remains in a coma for over a year by after a surgery comes out of coma in April 2009.
When Michael comes out of the coma, Michael is shocked find that Carly is expecting a child with Jax and Sonny is expecting a child with his new wife Claudia Zacchara. Claudia later loses her child but Carly carries her child to term. Claudia kidnaps a very pregnant Carly planning to kidnapp her child as Claudia was suffering a mental breakdown. Michael tracks down Carly and Claudia after Carly had given birth to daughter Josslyn. Michael seeing no way to stop Claudia picks up an old ax handle and hits Claudia in the head killing Claudia. Carly, Sonny and Jason cover up the crime.
Sonny goes on trail for Claudia's murder and Sonny and Carly send Michael to go live on Sonny's island so she won't confess to killing Claudia. However, Sonny's newly found police officer son Dante Falconeri tracks down Michael and Michael reveals the truth. Dante and Michael return to Port Charles and Michael confesses. Michael is sentenced to five years in prison. Michael heads to prison and Jason soon comes up with a plan to head to prison to protect Michael from Sonny's emenies but Michael is there a few weeks before Jason get there. In that time Michael is raped by another prisoner name Carter. Both Michael and Jason are released a few months later in help thanks to Dante.
In the following months Kristina's friend Ali takes a liking to Michael, but he uncomfortable around girls. Michael later confides in Sam about things and she sets him up with her friend Abigail "Abby" Haver. Their first meeting is a bit disastrous when things move too fast, but despite this they continue to run into each other around town. After a few meetings they admit to liking one another and enjoying the time they have spent together. They later exchange phone numbers and decide to see one another. Michael and Abby are happy together but have problems when Abby's ex-boyfriend Brandon Lowell arrives. Brandon almost rapes Abby and Jason takes care of Brandon. Michael is heartbroken when Abby is killed in an accident in December 2011 and around this time Morgan heads off to boarding school
Early the next year in February 2012, Michael and Dante come across a car accident and Michael saves Starr Manning but is unable to save Starr's boyfriend Colton "Cole" Thornhart and their daughter Hope Manning-Thornhart. Michael supports Starr as she grieves for Cole and Hope. Michael and Starr start dating a in mid 2012 and date until she leaves town in April 2013.
A few months later, Morgan returns to town with girlfriend Lauren "Kiki" Jerome in tow. Michael and Kiki fall for each other but can't be together as it is believed that she is Quartermaine, making her his cousin. Morgan discovers that Kiki is not a Quartermaine and quickly marries Kiki. Shortly after the marriage, Kiki leaves Morgan and starts dating Michael. Morgan turns against the family and starts sleeping with Kiki's mother Ava Jerome. Kiki helps Michael reconnect with a recently revealed to be alive A.J. Michael builds a relationship with A.J. despite Sonny and Carly being against it.
Sonny later kills A.J. as he believed that A.J. kills his girlfriend Constanza "Connie" Falconeri. Sonny also sleeps with Ava. Ava becomes pregnant and is unsure of Sonny or Morgan is the father. Morgan and Kiki discover that Ava killed Connie but keep the truth about from Michael. When Michael discovers that they knew and sleeps with Rosalie Martinez and brakes things off with Kiki. Michael changes his name to Michael Alan Quartermaine and moves into the Quartermaine mansion.
Ava later gives with to daughter Avery Corinthos, but Ava goes to prison for killing Connie and Sonny goes to prison for killing A.J. but Michael is releases a few months later. Michael goes for custody of Avery and wins custody. He renames her Avery "A.J." Quartermaine, to anger Sonny. Michael hires Sabrina Santiago as nanny for Avery. After about six months, Sabrina convinces Michael to return custody of Avery to Michael. Michael and Sabrina start dating soon afterwards. Early in their relationship, Sabrina reveals that she is pregnant. However before that started dating Sabrina slept with her mobster ex-boyfriend Carlos Rivera and he the father of her child. Sabrina keeps that Carlos is the father of her child and allows Michael to believe that he the father.
When the truth comes out Michael brakes up with Sabrina and she leaves town with Carlos. A few months, Sabrina returns to town having married Carlos and given birth to a son Eduardo "Teddy" Rivera. Carlos is later kill by Julian Jerome. Michael and Sabrina get back together and decide to raise Teddy. On the day that Michael is going to propose to Sabrina, she is murdered by Paul Hornsby Sr.. Sabrina had witnessed Paul trying to murder someone else. Michael vows to raise Teddy but Carlos's brother Joe arrives and Michael hands over custody. Joe and Teddy then leave town.
In 2016, a woman named Nelle Hayes arrives in town, Nelle starts getting close the family. Nelle later reveals that she was a kidney donor for Josslyn, who as a toddler need a kindey. Sonny and Carly were hesitant to believe the story. It is later revealed that Nelle is indeed Josslyn's donor. Nelle promised she had no regrets and prepares to head back to Atlanta where she had been living. Carly offers Nelle a job a nanny to Avery wanting to get to know Nelle better. Nelle agrees having lost her job back in Atlanta. However, Michael's grandmother Barbara Jean "Bobbie" Spencer is suspicious of Nelle. Nelle becomes Carly's personal assistant. Michael and Nelle become friendly and there is romantic feelings for each other but Nelle keeps them just friends. Meanwhile, the family is heartbroken, when Morgan dies in a car bomb, later revealed to have been cause by Olivia Jerome.
Unknown to everyone, Nelle is plotting to brake up Carly and Sonny's marriage to blow Carly's life apart. Nelle drugs Sonny and makes him believed that he slept with her. Sonny begs Nelle not to tell Carly but Nelle recorded Sonny talking about it. It is later revealed that Nelle is Janelle "Nelle" Benson, the daughter of Frank Benson who is Carly's adoptive father. Nelle had been force by Frank to give up her kidney and he had told her that Carly just came and took the kidney for Josslyn. Nelle's lies are reveal and she is shunned by everyone but Michael.
Months later, Michael and Nelle start dating much to the horror of Carly and the rest of the family. Carly begins to look more into Nelle's past. It is revealed that Nelle's past rich fiancée Zachary Grant, died suspiciously. Michael confronted Nelle when he caught her in several manipulative lies. Nelle tried to blame Carly and Bobbie for her problems, but Michael decided to end things with Nelle because he couldn't trust her. Michael decides to cut all tries because he learns that Nelle had been doing more shady this to other people in town.
In December 2017, Nelle reveals to Michael that she is pregnant with their child. Michael doesn't fully believe Nelle until a DNA test reveals that he is the father of the child. Nelle starts looks Ava Jerome's art gallery, Ava is Carly and Sonny's nemesis. Nelle continues to manipulated her way into Michael's life and befriends his grandmother Monica Quartermaine, who also hates Carly because of what Carly and Sonny did to A.J. to keep Michael out of A.J.'s life. Michael starts to get close to Nelle once again but unknown to Nelle he is only doing it for the concern of their child.
Nelle begins to secretly plot to Carly out of her and Michael's lives, as she knows that Carly would do almost anything to get Nelle out of Michael's life once the baby is born. Nelle makes it look like Carly's is going crazy by making Carly believe that Morgan could still be alive. An earthquake hits Port Charles and Nelle loses her home and Nelle uses to this make Monica feel sorry for here and Monica invites Nelle to move into the Quartermaine mansion. Michael moves out soon after. Monica holds a baby shower and Carly attends as the baby is her grandchild, Nelle continues to gaslight Carly using the memory of Morgan. Carly heads upstairs and Nelle later heads upstairs and in the nursery and Carly discovers that Nelle had been doing everything. Nelle heads out of the room and the two continue there argument at the top of the stairs. Nelle takes a tumble down the stairs. Carly iss arrested when Nelle falsely accused Carly of deliberately pushing Nelle down the stairs. Ava retrieved the blanket that looks just like Morgan's baby blanket that Nelle had been taunting Carly with. Ava held onto the incriminating blanket to protect herself as Nelle had been blackmail her.
Carly is committed to a mental hospital. Michael agrees to move back into the Quartermaine mansion to be closer to her and baby but unknowing to Nelle, Michael moved in to prove that Nelle set up Carly. Just when Nelle has what she has always wanted Michael with not Carly, her ex-flame police officer Harrison Chase. Chase had been investigating Zachary Grant's death when he fell for Nelle. Nelle used him and the case against her ended up thrown out. Nelle tells Michael that Chase had followed her to Port Charles and was stalking her to use it to get Michael to get close to her. But Michael had secretly found proof that Nelle was setting Chase up. Michael then proposed marriage to a shocked Nelle. Nelle agrees and takes the first chance she can to rub the engagement in Carly's face by visiting her at the mental hospital. Meanwhile, Michael and Chase are working together to bring down Nelle.
Michael and Chase plan to fake his Michael's death and set up Nelle. Michael persuaded Nelle to sign a prenuptial agreement that leaves her with everything she came into the marriage with, which is nothing. Michael then calls Chase to let him know that they are ready for the next phase of their plan. Chase confesses to Nelle that he still loves her and wants to run away with her and the baby. Nelle turns Chase and tells him that she is staying with Michael. Carly escapes from the hospital to stop Michael and Nelle's wedding. Carly is returned to the hospital and Michael and Nelle go ahead and marry. Soon after the wedding, Nelle overhears Michael talking to Jason and informs Jason that he plans to do up a new will cutting her out of his will and that he is going to divorced her after baby is born. Nelle goes running to Chase.
Nelle wants to be with him but the only way that they can be together is if Michael dies, because that is the only way she could hold on to her child. Chase agrees to set up Michael's murder. What Nelle doesn't know is that Michael and Chase set the whole thing up even the marriage. Michael and Nelle are in a car what Nelle believes that Chase set up to crash. Michael won't let Nelle out of car and Nelle confesses that the car is set up crash. Michael later gets Nelle to confess to Zachary's murder as well on video. However, there is a car accident cause by a police transport carrying Dr. Liesl Obrecht.
Nelle escapes the car but leaves a pinned Michael in the car. Nelle takes off into the woods, meanwhile is about exploded but Michael manages to escape the car. Nelle meanwhile goes into labour and with help from escaped Liesl, delivers a healthy baby boy. Nelle and the baby part ways with Liesl. Nelle and her son continue to through the woods. Nelle is found by Bradley "Brad" Cooper who is on his way to the hospital with his newly adopted son Wiley Cooper-Jones, who had just died from SIDS. Nelle knows that there is no way that she will be able to keep her baby and wants to punish Michael and his family and so she gets heartbroken Brad to agree to switched her son for Wiley. Brad returns home with Nelle's baby while Nelle continues on with deceased Wiley and taken into custody and heads to the hospital.
Michael heads to the hospital and comes face to face with Nelle. Michael is shocked to learn that Nelle had give birth to their son. Nelle hands the baby over to Michael and Michael discovers that the baby is dead. Nelle tries to blame the baby's death on the accident, but the doctor assures Michael that the baby hadn't sustained any injuries. The baby is named Jonah, as Michael and Nelle had been planning on naming their baby that. Nelle is sent to prison and Michael goes on to bury his son Jonah Michael Corinthos. Michael remains unaware that his son Jonah is really Wiley, who is being raised by Brad and Michael's uncle Lucas Jones. Nelle is given the maximum sentence for murdering her fiancée and attempting to murder Michael.