Orphaus (オルファウス) is a playable character in Zill O'll. Regardless of the player's choices for the main story, he joins the protagonist's party at the end of the game. He returns in the prequel as an ally NPC for Areus's party. Due to Nemea's fame, adventurers became aware of Orphaus's quirky hut and his hobby of raising stray cats. Too baffled to approach it, they label him as the "Owner of Felidae Manor" (猫屋敷の主人) as a result.