Grace the Inkling
Appearance: has yellow eyes, wears studio headphones, purple sea slugs, a purple shirt, black shorts, and is the yellow inkling for her ink and her hair.

Age: 15
Personality: very cheerful and caring, like her best friend Courtney the Octoling. However, as an agent, she is fierce and jumps to conclusions during battles.

Friends: Tamara, Courtney the Octoling, Jacob, Mia, Bridgett, Smg4, Meggy Spletzer, Desti, Mario, Ko, Luigi, Mike the Bunny, Mickey the Bunny, Ash Ketchum, Pikachu, Callie, Marie, Pearl, Marina, Orange (Inkling), and Pink (Octoling.)

Enemies: Smg4's Mario, Bob, Francis, Smg3, Team Green, Bendy, and others.

Rivals: Grace Ambling (formerly), Luan Loud, and Pearl of SU. (However, Pearl of SU and Luan Loud started the rivalry between them and Grace the Inkling).

Other facts: she is Agent 5. Her stage name is Grace-O

Crushes: Marie of the Squid Sisters, Orange (Inkling).

Fandoms: Smg4, Wedding, crossover, Splatoon.

Agent outfit: wears a yellow t-shirt, black face mask, sunglasses, pink shoes, and has a cap on.
Weapon: her signature ink dualies
Backstory:

During her time before being an agent, she aspires to be a pop singer like the Squid Sisters, but it gets lonely where she lives, considering that she has no roommates and no friends. One day, when Grace was eating, she saw Agent 2 (Marie) and when approaching Agent 2, she asked if Grace can join her, to which Grace happily agrees. Underground, she met Agent 3 (Mia), Agent 4 (Jacob), Agent 1 (Callie), and Agent 8 (Bridgett), and she makes friends with them once Grace becomes Agent 5. But even when she makes new friends, she is still lonely in the place where she lives, because of no roommates. That is until she makes her newest best friend and roommate...

Voice Actress: Tara Strong (voice Actress of Timmy Turner)