Hattori is a pet pigeon and the loyal companion of Rob Lucci, a member of CP9, in the anime and manga series One Piece. Often seen perched on Lucci’s shoulder, Hattori is notable for his ability to perform simple tricks, mimic human behavior, and even communicate by delivering Lucci’s words through humorous ventriloquism. Though a bird, Hattori’s presence adds comic relief and further character depth to Lucci, emphasizing the eccentric dynamics within CP9.