Rockstar Games considered featuring as many as four protagonists in Grand Theft Auto 6 before ultimately settling on two. The studio's decision was rooted in a desire to ensure players had sufficient time and emotional connection with each character, according to studio co-head Rod Nelson.

"We worried about diluting the amount of player time with each, and therefore player connection with those characters," Nelson explained in an interview with IGN. He noted that after the development of Grand Theft Auto 5, which featured three playable characters, the team explored concepts for sequels that could expand the roster.

The concern was that increasing the number of protagonists would detract from the depth of experience players could have with any single character. Nelson emphasized that making players feel invested in multiple characters simultaneously is a significant challenge in entertainment, hinging on the chemistry between the characters and their portrayals.

This focus on character chemistry appears to have been a guiding principle for the development of Lucia and her partner. Early reactions to the Grand Theft Auto 6 trailer, which prominently featured the dynamic between the two, suggest that this emphasis may have resonated with audiences. One observer noted a surprisingly strong emotional reaction to a scene involving Lucia, attributing it to the pre-established connection with her and her partner.

Beyond its protagonist dynamics, Grand Theft Auto 6 is also set to feature a world significantly larger than that of Red Dead Redemption 2, and will include a more complex iteration of the honor system seen in Rockstar's previous title. However, the partnership between the game's central characters is increasingly being viewed as a defining element that could set it apart from earlier Grand Theft Auto installments, especially as the studio appears committed to its established campaign mission design principles.