The role was originated by actress Tiana Le from June 23, 2017 through March 5, 2018.
After Le only appeared in three episodes, Trina was recast with Sydney Mikayla on February 20, 2019. Mikayla was initially on recurring status from February 20 to July 5, 2019.
On July 5, 2019, it was revealed that Mikayla was put on contract with the series.
On May 2, 2021, it was announced that Mikayla was accepted to UCLA. Mikayla was on contract from July 8, 2019 through October 1, 2021 and was back on recurring status from October 8, 2021 through March 17, 2022 due to her school schedule.
On March 4, 2022, Soaps.com revealed that Mikayla will be leaving the show to focus on college and the role will be recast with actress Tabyana Ali. Mikayla's final airdate was on March 17, 2022. Ali's first airdate was March 25, 2022. Ali is on contract.
Trina Robinson is the best friend of Josslyn Jacks and good friend of Cameron Webber. Trina was known as a 'bad girl' and is first seen throwing an unsupervised party with underage drinking and boys at Josslyn's house. Trina also invited a new student, Oscar Nero, who she knew Josslyn had a crush on. Josslyn and Oscar started talking at the party and began a relationship soon after.
In 2018, Trina was dating a junior and hid some condoms in Josslyn's backpack so Trina's mother wouldn't find them. They fell out of Josslyn's backpack in front of Carly and Josslyn was forced to tell her mom the truth.
Trina was next seen on March 5, 2018 at an alternative prom created by Oscar. He had been defending Dakota, a transgender student, from a bully, Troy Pulver, at school and Oscar wanted a safe place for students to wear what they chose. Troy interrupted the prom but then Oscar punched him and Troy left. Trina seemed to be interested in Dakota at the prom but there was an earthquake and Trina received minor injuries in the aftermath.
After Oscar was diagnosed with cancer, Cameron wanted to help his friend's pain with pot cookies. Cameron heard that Trina's boyfriend knew a weed dealer and he asked Trina for the dealer's number. Cameron met with the dealer, a fellow student named Cole Johnson, and both of them were immediately arrested.
Trina supported both Cameron and Josslyn throughout Oscar's battle with cancer. They all went on a road trip to Niagara Falls as part of Oscar's bucket list. Trina flirted with Cameron during the trip but she could tell he liked Josslyn. Trina also admitted that her 'bad girl' reputation wasn't as true as she made it out to be.
On February 19, 2020, it was revealed that Trina's dad is Marcus Taggert. However, it has been hinted that Trina's biological father is actually Curtis Ashford.
On July 1, 2021, Spencer breaks into the Jerome Gallery while wearing a mask. Nikolas has an alert that tells him about the break-in. Trina later runs into Nikolas in the gallery and pepper sprays him in the face. She apologizes once she realizes it is him and comments that she used all of the spray on him.
Later Spencer creeps around the gallery and Trina runs into him. She tries to spray him but the pepper spray is empty. She throws a remote at his head and sets off Spencer's trap (fake blood in the sprinkler system).
Trina walks into The Savoy down the street covered in fake blood after chasing after Spencer and losing him. Bartender N'neka helps Trina clean up and get changed for her graduation party.
Spencer goes to Trina's party at The Savoy, entering the back way and scaring Trina. They talk and flirt, with Spencer complimenting her, calling her "badass" and claiming his name is Victor and that he's a barback at the nightclub.
Later Trina runs into Spencer who is wearing only shorts and sunbathing on Pier 54. She was looking for a place to watch the fireworks. He assumes she was searching for him and suggests they wear their birthday suits. Trina offers to take him to the park instead.
At the park, Trina says she can introduce "Victor" to Cameron and Josslyn. Spencer says he is thirsty and goes to grab some bottled waters. He never shows up and Cameron tells Trina she may not want to be friends with someone who is playing games. Trina leaves to watch the fireworks with her mom as Spencer spies on her from the bushes.
Spencer later apologizes to Trina about not showing up and gives her a water bottle. They talk about art and he says he lives in a studio in an expensive part of town. He tells her his mother died and he has been in Europe. Portia shows up and Spencer turns down an offer to have dinner with the Robinsons. Later Spencer goes to Mike Corbin's grave.
On September 8, 2021, Trina's mother Portia tearfully admitted to an unconscious Jordan Ashford that she needs to tell Trina the truth about her father, hinting that Taggert may not be her biological father.
Used a fake ID to get a motel room in Niagara Falls [revealed on Mar 5, 2019]
Withheld the information that Dev Cerci was in the country illegally as "Devin Corbin" [Nov 26, 2019-Nov 23, 2020]
Faked an injury to distract the medical examiner so Cameron Webber could gain unauthorized access to the morgue with Josslyn Jacks' help [Mar 11, 2021]
Sprayed Nikolas Cassadine with pepper spray after mistaking him for a mugger [Jul 2, 2021]
Was supposed to be locked in a storage room by Esme Prince [Nov 16, 2021]
Fallen ill after drinking a hot toddy that had been spiked by Esme Prince [Jan 27, 2022]
Being framed by Esme for filming Cameron and Josslyn Jacks having sex and then emailing it to everyone at P.C.U. and uploading it to various public websites [Mar 17, 2022-present; arrested on Mar 28, 2022; released without bond pending a trial on Apr 1, 2022]
Framed by Esme who purchased some art images with Trina's credit card on a burner phone she slipped into Trina's purse [revealed Apr 11, 2022]