On May 31, 2018, several sources confirmed that Days Of Our Lives alum James Read would join the cast of GH as Gregory Chase, the father of Hamilton Finn and Harrison Chase. He made his first appearance on June 6, 2018.
On September 13, 2018, Soaps.com confirmed that Read would return to GH as Gregory Chase during the week of September 17. He returned on September 21 and left on October 10.
On October 14, 2020, it was announced that Gregory Harrison had been cast to replace James Read. He began filming the day of the announcement, to appear onscreen sometime in 2020. Harrison made his first appearance on November 11, 2020.
Gregory Chase is the father of both Hamilton Finn and Harrison Chase. He was more estranged from Finn than he is with Chase because Finn led him to believe that he was upset with him for moving on and remarrying too quickly after his mom died. Gregory and his new wife had a son and named him Harrison Chase.
In 2018, Finn and Chase reunited but Finn wanted nothing to do with him at first due to having a problem with their dad. Although Finn softened towards Chase and began a brotherly relationship with him, he still held a grudge against Gregory.
In 2020, it was revealed that Gregory was married to world renowned journalist Jackie Templeton, making her Chase's mom and Finn's stepmom. On October 27, it was revealed that Finn slept with Jackie decades ago on the night before she married Gregory. It was also revealed that Finn didn't stay away because he was angry with Gregory for remarrying so soon after his mom died, he stayed away because he felt ashamed of what he did to Gregory.
In 2021, Gregory overheard Finn and Jackie talking, so they finally confessed their one night stand to him. Gregory was hurt and began to wonder if Chase could be Finn's biological son and they admitted that they didn't know for sure. On March 15, a paternity test showed that Finn is Chase's father. On March 19, however, it was revealed that the paternity test was tampered with by Cyrus Renault, which means that Finn really is Chase's half-brother and Gregory truly is Chase's father. On June 18, Finn and Gregory finally learn that the first paternity test was indeed tampered with and that Gregory is Chase's true father.
On June 6, 2018, Hamilton Finn had accompanied Anna Devane to Berkeley, California. As Finn was in a coffee shop, his estranged father, Gregory Chase went in and Finn was surprised to see him. Gregory attempted to see how he was doing and he tried to make amends with Finn, who wanted nothing to do with him. He was upset with Gregory for moving on and remarrying too fast after his mom died.
On September 21, Gregory came to Port Charles and he had met with Finn, Anna, and Harrison Chase at the Metro Court. He eventually revealed he was sick and he needed treatment for whatever he had. Despite Finn's reservations, he agreed to treat his dad.
On October 10, after several tests were ran, Gregory found out from Finn that he had PTLDS (Post Treatment Lyme Disease Syndrome) but was confused since his Lyme Disease test came back negative. Finn explained that the first test for Lyme Disease often comes back as a false negative, and he also said that PTLDS reoccurs after the lyme disease treatment. Gregory was upset and saddened that Finn ignored his plea to reconcile with him and stop hating his stepmother. Finn explained some stuff he can do to help him recover and Gregory pointed out he and his stepmom are the same and would make a great team. Finn got him discharged and he went back to Berkeley.
On August 14, 2020, Anna asks Finn if he is going to invite his father to their upcoming wedding. Finn says Gregory will invite Finn’s stepmother and Finn doesn’t want to see her.
On October 7, it was revealed that he is currently married to Jackie Templeton, making her Chase's mom and Finn's stepmom.
On November 11, Gregory returned to Port Charles after learning from Jackie that Finn had been shot. Finn was surprised to see his dad, and said that he didn't have to come all this way. After some awkward attempts at conversation, Gregory decides to leave so he doesn’t cause Finn’s blood pressure to skyrocket. Elizabeth Webber interrupts to check Finn’s vitals as Gregory and Chase step out. In the hall, Chase asks his dad if he was ever going to tell him about the divorce. Gregory insists it’s a separation and that he and his mother will get through it. Chase is called to the station, so Gregory goes back to talk to Finn. He inquires about his granddaughter, and Finn admits she’s the greatest thing to happen to him.
On December 7, Gregory finally met Finn’s daughter, Violet and they got to know each other. They bonded and he eventually read her a bedtime story.
On December 29, Gregory met Chase’s ex, Willow Tait and saw her and Chase jump into the freezing water together.
On March 8, 2021, Gregory overheard Finn and Jackie talking and confronted them. Finn and Jackie finally confessed that they slept together the night before she married Gregory. Gregory was hurt when he learned the truth and was also hurt when he learned that Finn stayed away out of shame over what he did. When Gregory realized that Chase could be Finn's son, he asked if it were possible and they said they didn't know for sure because they never ran a test.
On March 12, Chase learned the truth about Finn and Jackie and grew angry with both of them since he might be Finn's son and because they betrayed Gregory years ago. After he kicked Finn and Jackie out, after Chase and Gregory had a heart-to-heart, Chase cried over the possibility of being Finn's son and Gregory hugged him.
On March 15, Gregory, Chase and Jackie waited with Finn at the hospital while they were waiting for the paternity test to come in. When Finn got the test results, he revealed that he was Chase's father, leaving him and Gregory devastated. Chase promised Gregory that he would always be his dad before furiously telling Finn that he will never accept him as his father. On March 19, however, unbeknownst to Finn, Chase, Gregory and Jackie, it was revealed that Cyrus Renault tampered with the paternity test which means that Gregory truly is Chase's father and that Finn is his half-brother.
On April 9, Gregory met with Chase, Finn and Jackie at a restaurant and they all planned to have a family dinner to move past the awkwardness and try to move forward as a family.
Health & Vitals
Sick with PTLDS [pre-2018-present; revealed on Sep 21, 2018; diagnosis revealed on Oct 10, 2018]