|Full name||Yolanda Mendez|
|Profession||Child Psychologist, Writer|
|Voice Actor||Ellen David|
|Appears in||Watch Dogs|
|First mention||Big Brother|
|First appeared||Hold On, Kiddo|
|Last appeared||Sometimes You Still Lose|
=Events of Watch Dogs
After the mission Hold On, Kiddo, Aiden tells her to take care of Jackson due to Nicky's abduction by Damien Brenks. When Yolanda asks where Nicky is, Aiden lies, telling her that Nicky is forcing herself to get rid of Lena's things. Later on, Yolanda tells Aiden that Jackson is getting restless and that he's not happy. Aiden tells her to call him if he runs off. At the start of the mission Role Model, Yolanda tells Aiden that Jackson has wandered off. Aiden realizes that he went looking for Nicky and remarks that Jackson is a lot like him. After saving Jackson, Aiden drops him off at Yolanda's house, and she threatens to call the police if they she doesn't hear from Nicky. Then, after Aiden saves Nicky and picks her up, Nicky remarks that Yolanda called the police. After escaping, Nicky and Jackson leave Chicago.
After the events of the game, WKZ TV interviewed her because she knows the Vigilante. She remarks that she wants "to explore this complex man's mind". She then says that she's writing a book, and then the game ends. In Watch Dogs: Bad Blood, she doesn't physically appear, however in the side mission Fox Hunt, it is revealed that the Rosario Brothers went to search her house to find any clues leading to the disappearance of Aiden Pearce from Chicago. Raymond Kenney went to the neighborhood when a Rosario Brother was lurking around the home and quickly dispatched him. He stated that she doesn't deserve what's happening and that he wants her to get her book of the Vigilante published.