Actress Bonnie Burroughs first appeared as Gladys Corbin on July 3, 2019. She made another appearance on September 3, 2019.
On December 20, 2019, Soaps.com announced that Burroughs will return to GH as Gladys during the week of December 23. She returned from December 26, 2019 to February 3, 2020.
On September 28, 2020, Soap Opera News announced that Burroughs will be returning to GH. She returned from October 9 to October 12, 2020.
Gladys Corbin is the cousin of Mike Corbin and she had a son named Brando. According to Mike, Brando’s father was a deadbeat who never married Gladys and left town. Brando was allegedly killed in Iraq. Sonny paid her to pretend that Dev Cerci is Brando's son, therefore, her grandson Devin Corbin.
On July 3, 2019, Sonny met with Gladys in a cafe at Bridgeport and she wasn't too happy to see him. He brought up her son Brando and asked for her help. He told her about a kid named Dev Cerci and that he needed her to pretend to be his grandmother by saying her son Brando had a kid named "Devin Corbin." Gladys was initially reluctant but Sonny paid her a large sum of money and she eventually agreed.
On September 3, Gladys showed up at the Metro Court and spent some time with her cousin Mike Corbin and met Sonny's wife Carly. Mike asked Gladys about Frankie and Gladys said Frankie isn’t here anymore (implying he died or broke up with Gladys). She also met her "grandson" Dev and they hugged in front of Jasper Jacks since it was all for show. Sonny later got a private moment with Gladys and warned her not to renegotiate the terms of their deal they made.
On December 26, Gladys returned to Port Charles and visited Mike at Turning Woods. Sonny was surprised but was not happy to see her and Gladys insisted that her visit has nothing to do with their arrangement. After Gladys shared a story about having a friend named Dot, who also had Alzheimer's and how Dot died, Mike and Sonny invited Gladys to stay for Christmas.
On January 30, 2020, Gladys and Carly are caught in a shootout at one of Sonny's warehouse and one of Sonny's warehouse workers who helps them is revealed to be her presumed dead son Brando. Gladys knew Brando was alive and claimed he was dead so she could cash in on his life insurance policy.
Gladys agrees to keep the secret that Brando is not really Dev’s father. Sonny gives Gladys a car to keep her quiet.
On February 3, 2020, Gladys went back to Bridgeport (confirmed by Carly on October 12).
On October 9, Gladys returned to town and demanded Sonny give Brando a bigger job beyond working at a garage. She is turned down and runs into Cyrus Renault who introduces himself.
On December 29, Cyrus tells Brando that Gladys informed him (Cyrus) that Dev wasn’t Brando’s son and was in the country illegally.
Fraud; claimed her son Brando was dead and cashed in his life insurance policy [2003-20; revealed on Jan 30, 2020]
Fraud; paid by Sonny Corinthos to pretend that Dev Cerci is her grandson "Devin Corbin" to keep him in the country [Jul 3, 2019-Nov 23, 2020]
Working for Cyrus [Oct 12, 2020-present; revealed on Dec 29, 2020]
Health and Vitals
Shot at multiple times by one of Cyrus Renault's men [Jan 30, 2020]
Taken by surprise and had a gun briefly pointed at her by Jordan Ashford [Jan 30, 2020]
Became an emotional wreck when she found her son, Brando, shot and was inconsolable [Jan 31, 2020]