Karissa Parker (née Gallagher) also has an unknown past. She came from a household called Arnett except she was the only inhabitant. She met Jared along with Jacob when they were all teenagers and attending the same school in Sunset Valley. She fell in love with Jared and they started to go out until she moved in, they married and moved to Isla Paradiso to start a family.
Karissa currently resides on a houseboat docked at Pretty Port with Jared and their triplet daughters, Jessica, Jasmine and Jade. Karissa is also on good terms with her boss, Carolina Ichtaca.
Karissa and Jared had their first date at the Spring Festival. There, she became romantic with Jared and they had their first kiss before going steady soon after. Four days later, Karissa went on a second date with Jared. The next day, she became a young adult.
Soon after becoming a young adult, Karissa moved in with the Parkers, joined the Political career. After receiving a promotion to Ballot Counter four days later, Jared proposed three days after the promotion. Karissa and Jared married two days later. The day Julia became a young adult was the day they moved to Isla Paradiso. The first day in Isla Paradiso, Karissa befriended her boss, Carolina Ichtaca where she became a two star celebrity. The next night, she tried for baby with Jared. After the first day of working at City Hall in Isla Paradiso, Karissa received a promotion to Campaign Intern. By the end of the day, she got pregnant. Three days later, after staying over at Carolina's, she and Jared got robbed of their TV and lounge chair. By the end of the day, Karissa went into labor and had triplet daughters, named Jessica, Jasmine and Jade.