Diego Diaz
Biographical information
Full name Diego Diaz
Gender Male
Status Deceased
Birth 2000
Nationality SpainUnited States of America Spanish-American
Residence Grimsdale, U.S.
Family Unnamed father

Ashley Diaz (half-sister)

Jennifer Carter. (step-sister; deceased)

Vanessa Carter (step-mother)

Partner(s) Mia Loukas (girlfriend)

Estelle Montserrat (ex-girlfriend; deceased)

Game information
Appears in Criminal Case
First appearance Case #1: All Boli Out (S1)

Diego Diaz is a main character in Grimsdale, serving as a detective in the Fairview Justice Squad.


Height 6'6"
Age 18
Weight 173 lbs
Eyes green
Blood O+

All Boli Out

He was first seen in the cutscenes which appeared before the events of the first chapter. He was seen in a cafeteria sitting with the player, Clay, Sploder, and Hasuro. Where he got fed up of seeing Brock and Bruno hurting Alexei, and so confronted Brock, where a fight started. Bruno, Hasuro, Sploder, and Clay, got involved as well.

For his fight with Brock, they were both sent to the principal office, alongside Alexei, the people who got themselves involved, and a girl named Yoyo Ip who was sent for getting laid. They were all punished by being locked up in the school building in night.

After Alexei got murdered, he and his future teammates got expelled, because they were the top suspects, leading them to form the Fairview Justice Squad, where their top priority is to catch Alexei’s killer.

He was later allowed back into the school along side his teammates after they successfully proven their innocence by arresting Brock.

After the investigation ended, he and the player went to Mia, telling her that she is allowed to join the team, he also told her and the player to find something that belongs to him which he left in the storage room. After the player and Mia fell for his prank, they went to confront him, where he told Mia that it was a test set up by him and the player to check if she is worth as a team member, which he told her she was, and they both went to a date together.

The Grim’s Butcher (Grimsdale edition)

After Jennifer’s killer was arrested, Diego asked the player if they could help him find Ashley. While investigating the junkyard, they found her phone and gave it to Clay, where Clay confirmed that she went to Victoria’s house. She was found in Victoria’s house, and Diego gave her a hug, and scolded her for running away, and told her he doesn’t care whatever gender she wants to be. After she was shown to her “best-friend”, Raphael, Raphael mocked her, and left, ending their friendship.This led to Ashley breaking down in tears, and running away, and Diego running after her.

Put Her Down

Diego became a suspect after Mia and Hamilton found his badge in the gardens. When informed of Estelle’s death, he didn’t show much sympathy and refused to explain to Mia why.

Randall and Hamilton later on, found a message he sent to the victim telling her he’ll never forgive her. After persuading Mia to let them speak to Diego privately, Diego knew what they came for, where he explained that Estelle seduced him into sleeping with her to win a debt 6 years ago, and although she apologized to him over it this night, Diego was still mad that he gave up his virginity for her, just to be dumped the next day.

Case Appearances


  • Diego is based on my friend and fellow fanfic writer, Diana Diaz, before her transition.
    • Additionally, he was modeled after the Jay from TGFBros.
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