The Protagonist (main character, player, etc.) of SCP: Unity is currently mostly unknown, and will likely become more fleshed out as the story is implemented.
The Protagonist is a D-Class personnel, as indicated by the orange D-Class jumpsuit seen in the game's opening. The fact that the Player spawns in the game just outside SCP-173's containment chamber suggests that he is currently assigned to work on SCP-173.
Very little is known about the history of the Protagonist, except for the fact that his birthday aligns with the date of the containment breach as indicated by SCP-983's reaction to the Protagonist. This may or may not change, and will likely be based on the relevance of the Protagonist's history for the story as it is implemented.
The Protagonist (or Player) begins the game by waking up in the Light Containment Zone just outside of SCP-173's containment cell. From then, the Player makes all the decisions for the Protagonist, including but not limited to: where to go, what to do, and which SCP's to interact with.
- With the addition of the FPS arms, it seems apparent that the Protagonist is male, based solely on the structure of the arms. They also suggest that he is Caucasian.
- SCP-983 is activated if the player approaches, suggesting that the date of the containment breach is the Protagonist's birthday.
- When SCP-983 is singing "Happy Birthday", it happens to malfunction at the very moment where a name is supposed to be mentioned. Why this occurs is unknown.
- The fact that the player can safely ingest SCP-1176-1 indicates that the Protagonist has an AB+ blood type.