The Merchant is a mysterious character in the Biohazard (Resident Evil) series, specifically appearing in Resident Evil 4. He is a traveling arms dealer who assists the protagonist, Leon S. Kennedy, by selling weapons, upgrades, and supplies. Recognizable by his distinctive cloak, glowing eyes, and signature catchphrases, the Merchant’s past and real name remain unknown. He plays a crucial supporting role, providing resources needed to survive the game's dangerous environments.