Meet Jason Duval and Lucia Caminos
What the official character introductions actually tell us.
Two leads, one dependency
Jason grew up around criminals, spent time in the Army, and later worked for drug runners in the Leonida Keys. He lives at one of Brian Heder's properties while doing local work for him.
Lucia learned to fight from her father and served time in Leonida Penitentiary. Rockstar describes her as wanting to build a better life for herself and her family.
The premise, in Rockstar's framing
Officially, the pair become caught in a criminal conspiracy across Leonida after an easy score goes wrong, and must rely on each other to survive it.
Rockstar characterises their relationship as potentially the best or worst thing to happen to Jason. That is a description of tone, not a spoiler about the ending — and no ending has been described.
What has not been said
No ages, no voice actor credits, no confirmation of how or whether character switching works, and no mission structure details.
Anything you read stating those as fact is not sourced from Rockstar.
How we know this
Every claim above is traced to the sources listed below. Where a source is a public statement from Rockstar Games or Take-Two Interactive, we mark the claim as officially confirmed. Interpretation is labelled Analysis.