Jason and Lucia are the central protagonists shown and named in official GTA VI promotional material.
Who appears in official previews?
The official GTA VI website and promotional material present Jason and Lucia as central characters. This page restricts itself to these publisher-supplied facts, not theories about their complete narrative arcs.
Story versus speculation
Trailers are edited marketing material. A scene shown in a trailer should not be treated as proof of playable mechanics or the full plot. Rumor-based character descriptions may be wrong.
Want fewer spoilers?
Use official announcements for high-level context and avoid leak aggregators if you prefer to discover the storyline through the game. The site will clearly label future story-heavy coverage.
Jason and Lucia appear in official material.
Full story outcomes, mission structures, and ending rumors are unverified.