Luke was portrayed by Anthony Geary from November 20, 1978 to July 27, 2015, when Geary decided to retire. He made a guest appearance on May 4, 2017 for Tracy's final episode.
Tracy was portrayed by Jane Elliot from June 1978 to May 4, 2017, when Elliot decided to retire.
In 2005, Tracy Quartermaine fell victim to a cruel prank, at the hand of her son, Dillon Quartermaine and his girlfriend, Georgie Jones for Luke Spencer. The plan was to get roughly $15 Million he planted in her bank account to bail Helena Cassadine out of extradition. Since Tracy Quartermaine did not want to give him the money, Luke decided to pull the ultimate prank on her. He would have Dillon call Tracy from Las Vegas and tell her that he and Georgie eloped. Knowing this would get Tracy to Vegas, Luke used this as an opportunity to manipulate Tracy's weakness: alcoholism. Once Tracy arrived in Las Vegas, it was "too late"- the pair was married. This drove Tracy into a drunken fit. Luke Spencer offered to buy her a few drinks, which made them drunk. Since Tracy drunk more than Luke did, she was completely incapacitated when Luke proposed marriage and she accepted. The following morning, when she woke up in a Vegas bed, Luke revealed everything to Tracy and the conditions to ending their marriage from hell.
At first her marriage to Luke was platonic, and it continued because of finances, but she had to fight romantic feelings for Luke, who continued to be devoted to his former wife and great love, Laura Webber, who briefly came out of a catatonic state in late 2006. Tracy had to deal with her son Dillon's entanglement with his stepsister Lulu Spencer. She advised Lulu against having an abortion when she became pregnant by Dillon, feeling Lulu would eventually regret her decision but was supportive when Lulu did abort the baby. Tracy told Luke that she was relieved for Dillon's sake that he would not become a father while he was still so young. During the storyline, Tracy referred to her own "three pregnancies" and it was strongly implied that she had an off-screen abortion at some point in her life. Tracy began to be haunted by her recently deceased brother Alan Quartermaine, who served as her moral compass, as she doesn't have much of a conscience. As Tracy began to be supportive of Lulu, really acting as a mother to her when she most needed it, the ghost of Alan decided it was time for him to move on.
In 2007, Luke and Tracy's marriage has moved more away from platonic and closer to love. Tracy helps Luke to try to maintain custody of Laura Webber. Her son, Dillon, and Lulu Spencer find evidence to suggest that Laura did not kill Rick Webber, but Scott Baldwin in fact did. Tracy and Dillon agree to keep the evidence of the revelation from Luke Spencer, as it will destroy Luke that he caused Laura's physical breakdown. Tracy has also come to care about Lulu. Edward is up to no good and sends Tracy to a mental hospital after she talks to Alan in front of Lainey and also she found out that her only ally was Lulu. Tracy discovered that Lulu's friend, Logan Hayes, is the son of Luke's enemy, Scott Baldwin. She has forbidden Lulu to see him but that has not worked. She has asked the Quartermaine's, Nikolas, Lucky, and Elizabeth to keep Lulu away from him. When Tracy decides to crush the family company, Edward Quartermaine has no choice but to let Tracy out of the mental house and she is the only person who can get through to her stepdaughter, Lulu Spencer.
With Tracy Quartermaine out of Shadybrooke, she can now focus on ruining Lulu's relationship with Logan Hayes. The first step is to get Scott Baldwin to admit that Hayes is his son. After receiving iron-clad proof that the two are related, Scott tries to get back into Logan's good graces. As it fails and Tracy is determined to get Luke back home, she offers Logan money to play nice with his father and regain good spirits with Lulu after using her to make Maxie Jones look good. Hayes rejects the offer and suggests to Tracy that Lulu will go back to him when she realizes how real their connection was but both are unaware that Lulu already agreed to Scott that she would give Logan a second chance. Upon realizing this, Tracy slaps Baldwin and resents him more for manipulating Lulu back into Logan's arms. This indicates that Tracy genuinely cares for Lulu's well-being. At the same time, Luke Spencer returns, pretending to be Tracy's masseur, Ramon, finding out that Tracy cheated on him with this guy. Upon Luke's return from hiding Laura Webber from Baldwin, Tracy reveals to Luke what has happened with his daughter and Scott's son. Lulu at the same time gets mixed up with Jason Morgan and Johnny Zacchara, a mobster's son. Now, Luke and Tracy are teamed up to protect Lulu and her safety. Tracy has offered her to come back, but she declined.
Luke has asked for Tracy's assistance in the matter, and she accepted,despite Ghost Alan warning her against interfering with Luke's events. He exclaims to her that he does not want to be "damned to haunt the rest of the Quartermaines together...forever". In response to this, Tracy replies that he is a self-presumed hallucination. Though Alan continues to haunt his troublesome sister, he still continues to serve as her conscience and sole guardian. A few days before Halloween 2007, the Spencers received an invitation from Nikolas Cassadine for them to attend a fancy dress Black and White Ball, as it is in Alan Quartermaine's honor. While both Tracy and Luke sneer at the thoughts of that function, Tracy reminds him that if they want to gain leverage on Baldwin and Hayes alike, and keep an eye on Logan and Lulu Spencer, it would be a good idea for them to attend.
At the actual function, she came late and did not actually appear at Wyndemere. It was, however implied that Tracy was expected to be late, by Luke Spencer's admission. When she finally arrived at Wyndemere, she was isolated by the burgeoning storm and she stood on the deck by herself for 90 minutes before getting up to Wyndemere. Alfred, the Cassadine family butler, mistakenly scared Tracy Spencer, allowing her to lose her balance and fall down an entire flight of stairs. Luke kissed her, thankful that she was alive and did not fall victim to Anthony Zacchara. He, Scott Baldwin, and Coop Barrett rescued her from the collapse, while Tracy and Luke and Scott barricaded themselves in the master bedroom, where Luke vowed to "nurse her back to health". When Tracy offered for Luke to go search for Zacchara, he told her that he did not want her to be his next victim.
In 2008, Tracy filed a malpractice suit for her out-of-town again husband, Luke. The lawsuit was filed against her sister-in-law Monica Quartermaine, which resulted in a hospital brawl in the General Hospital elevator. Tracy told Monica not to operate on Luke because of her emotional strain against the deaths of Alan and Emily, however, she did anyway, and froze on the operating table.
Since Tracy filed the medical malpractice suit, she has been kicked out of the family's (esp. Monica's) mansion with frozen access to the family money. When Luke did return, she explained to him that she still loved him, but was not going to continue to be married to him. Luke told her that he was not going to give up on their marriage so easily, but she shrugged and left the monument which was their "Haunted Star Casino".
Recently, she and Luke Spencer left town because Luke was being investigated by his connections with the Zacchara family, which invested in his Haunted Star Casino. The mob family left him to take the fall with the I.R.S. because he stole money from them. Afraid of what he would be up to, she agreed to leave with him. Tracy returned without Luke because he was not spending the money and enjoying their time the way that she wanted him to. Upon returning, she discovered Lulu in bed with Johnny and nearly forbade it from happening. Lulu, who has a soft spot for bad guys, shrugged off Tracy's request to stop seeing Johnny.
At this time, Monica Quartermaine, Tracy's sister-in-law, is in rehab after being indicted in court for hit and run. Tracy has visited Monica and has learned that she is doing fine and is ready to return to work in a few weeks, which pleased Tracy. Tracy visited Monica in the rehab and asked for advice about how to save Lulu's life. Monica told Tracy that if she could turn back the clock, she would do everything to save all of her children, especially Jason. With that, she told Tracy that if she want to save Lulu's life, then she has to do everything in her power to drive a wedge between Lulu and Johnny. After that, she visited Johnny in his holding cell where she told him about her brush with the mafia. She explained to him that she was once a mob boss and she heard about how his father Anthony Zacchara murdered his wife, Johnny's mother. She told him that if he really cared about Lulu, he would let her go.
In October 2008, when Lulu was in her darkest hour, Tracy had one of her 'men' track down Luke. He turned up in Mexico, so Tracy headed there, but not before blackmailing Edward into getting the money laundering charges drop. Once she's satisfied, she flies to Mexico. She soon finds Luke in a bar, of course, passed out drunk. The bar tender informs her that he's been there a while. She pours water over him, and tells him about Lulu's situation. They prepare to leave after Tracy pays the bar tab, but they're stopped by a police officer. Luke is wanted for destruction of property and not paying bar tabs. Tracy pays off the cop, and is frustrated when he soon returns for more cash. But what she doesn't realize is that it's a different cop; a much more honest one. He takes the money, and arrests Tracy for bribery. Luke tricks the officer, so Tracy doesn't go to jail! But in the end they both end up in jail.
In November, it was announced that Laura had awoken from her coma. To this news, it is a question of whether or not Luke will stay married to Tracy or go back to Laura, the love of his life. On November 20, Tracy will file for a divorce and leave Luke to be with Laura as she has his heart, not Tracy. Luke however told Tracy he loved Laura, but his love for Laura had changed, now Tracy was the only woman for him!
With a new dawning beginning as Luke proclaimed his love for Tracy, being unconvinced and stubborn, Tracy shut Luke out lying to him and making him believed they were already divorced. However, the obvious love between the two lead to many ploys by Luke to win the new love of his life back. This happened on New Year's Eve when Luke planned a surprise party for Tracy. Tracy thought that it was a stupid gesture and a waste of her time and money. They played roulette, Tracy asked Luke when Laura's birthday was. He replied December 21. Tracy then said that if the ball landed on 21 Luke will leave the country and give her a divorce but if it landed on six, Tracy's birthday, she had to take him back. The ball lands on 6 and they bring in the new year with a passionate kiss.
2009 started off with a bang in the hospital, and showed how close Tracy and Lulu had become over the years. Tracy then bailed Luke and his new friend Ethan Lovett out of jail. Tracy fixed the results of a DNA test to show that Luke was not Ethan's biological father, after Helena Cassadine pointed out how much alike the two were, but Tracy did not know the true outcome. It was later determined that Ethan was, in fact, Luke's son and Tracy's stepson. Tracy struggled with Luke's affections for Ethan's biological mother Holly Sutton who eventually left town again. Luke took off for the summer, and Tracy did not go after him. When he returned they began to get closer. Luke, Ethan and Lulu spent Thanksgiving with the Quartermaine's, and Tracy spent Christmas Eve with the Spencers.
In 2010, Tracy has been there for Luke in the problems his children have been having. She has tried to protect Ethan from working with Johnny, and his problems with Kristina Corinthos-Davis. She bailed him out after he was arrested. When Tracy becomes suspicious of Elizabeth baby's paternity Helena has her kidnapped. Luke comes to rescue and they are both held captive in Greece in Helena's dungeon. Tracy becomes deathly ill and Helena refuses to give her medical attention. Luke comes up with a story claiming that their marriage isn't really legal and Tracy is angry enough to regain her strength.
In November 2010, after Tracy learns her marriage to Luke has been a scam, Luke pleads with her to remarry him. She insists on getting a pre-nup, but Luke plans on getting her drunk in Vegas again. Tracy instead ropes Luke's son Ethan Lovett and her great-niece Maya Ward into being chaperones. Maya objects, but Ethan quickly agrees to a trip with Maya. They eventually do get to Vegas and all four of them get drunk. They hire Reverend Grace to marry Luke and Tracy, but Maya and Ethan wind up getting married instead due to a mix-up. Once they get back to Port Charles, Luke continues pleading for Tracy to marry him. She tells him that she will marry him if he signs a pre-nup and gives her the wedding of her dreams—without using any money stolen from her. He agrees but constantly wonders how to pull it off.
On December 21, 2010, Laura's birthday, the two of them get married at the Quartermaine mansion with Lulu and Lucky as the maid of honor and the best man, respectively, and Maya and Ethan also in the wedding party. While most of the guests suspect that Luke will ditch the bride, it's actually Tracy who tries to leave Luke at the altar. Lulu and Tracy's granddaughter Brook Lynn convinced her to go through with it. At the wedding party, both the best man and the maid of honor give their speeches. When Tracy throws the bouquet, Brenda Barrett catches it and announces her upcoming marriage to Sonny.
Once the guests have left, Tracy takes the pre-nup and throws it in the fireplace. Upon the return of Skye Chandler-Quartermaine in Port Charles in 2011, Skye fuels Anthony Zacchara with some background knowledge of Tracy Quartermaine, including facts that she inadvertently invested his dirty money into her family's company back during her marriage to Gino Soleito. With the new found knowledge, Anthony begins blackmailing Tracy into a romance and eventually a marriage or else he will report her to the FCC and have them arrest her. With her back against a wall, Tracy is forced in an engagement to the mob boss, adding some embarrassment to the situation, Anthony enlists Maxie Jones' help in arranging the wedding. Claiming to first have a cold and then to be superstitious, Tracy gets Anthony to push back the wedding from Friday, January 13.
Tracy has become jealous of Luke and Anna's bond, she has warned Anna about getting involved with Luke to any extent but when she doesn't seem to realize the warnings the way Tracy hoped which was her jealousy talking for herself, she gets upset and storms off. Tracy heads to the lock up and talks to Anthony her husband, he wants to use her phone, in exchange she demands he sign the divorce papers but he doesn't want to. Tracy's April birthday is once again forgotten by Edward, Monica, Ned, and Dillon. Luke, however, remembers and tracks down the offspring of Tracy's childhood horse Skittles. Luke's gift of Son of Skittles delights Tracy.
Tracy enlists Luke's help to get rid of Anthony. Luke arranges for Anthony to be sent off to Ecuador, and Tracy tells Anthony to meet her at the Quartermaine boat house. When Tracy arrives at the boat house, she finds Anthony's dead body. Originally she thinks Luke shot Anthony, but Luke disproves this theory, and they realized someone has framed them. When the police arrive Tracy and Luke pretend that Anthony is alive and prop up his body to make him appear to be sleeping. Heather Webber, who is infatuated with Luke, sees through this and buries the body, to protect Luke. The police question Tracy in Anthony's disappearance, but they didn't arrest her because the body was never found.
She and Nikolas head to New York City for The Chew segment. While waiting for the time to head over to the show, Tracy is informed by Luke Spencer that he talked to Ava Jerome, the mother of Lauren Frank. Luke also tells her that he sent Spinelli, A.J.'s investigator, in the wrong direction. Elizabeth persuades Nikolas to prevent Tracy from getting to The Chew. Tracy is able to pray to the heavens/her father to let her be able to go to the show. At the taping of The Chew, the food experts get sick.
In 2014, Tracy and Luke get married. Tracy later got the marriage annulled when she thought she was married to Faison.
In May 2017, Tracy leaves Port Charles and is last seen running into Luke in Europe. They are later said to be living together in Amsterdam.
Luke and Tracy marry for the 2nd time.
- On June 2, Luke revealed that Tracy had filed for an annulment when she thought that she was married to Faison. Tracy told him that she didn't know if it went through. Luke told her that he did some digging and found out that it did. So they are no longer married
- Michael described them as such during the Nurses Ball 2020