Gehrman Saishou, also known as the First Hunter, is a pivotal character in the game Bloodborne. He serves as the guardian of the Hunter's Dream and acts as a mentor to the player, providing guidance and support throughout their journey. Gehrman's enigmatic and tragic backstory is gradually revealed, tying him to the origins of the Hunter's Night and the Great Ones. Ultimately, he becomes a final adversary, challenging the player to make difficult choices that shape the game's ending.