Zack Fair is a central character in the Final Fantasy VII series, known for his role as a SOLDIER 1st Class. He is a key figure in the prequel game, Crisis Core: Final Fantasy VII, where players witness his journey and friendship with Cloud Strife. Zack is characterized by his optimistic and determined personality, as well as his unwavering sense of justice. His legacy deeply influences the main storyline of Final Fantasy VII, as his past actions and relationships profoundly impact the game's protagonist, Cloud Strife.