|Voice||Masaaki Tsukada (Japanese)|
Sir (サー, Sā) is a fictional character from anime and manga series of Baki the Grappler.
He is known as "the Soldier Among Soldiers" (兵士の中の兵士, Heishi no Naka no Heishi).
- In truth, his real name is unknown. He's just called Sir in the manga (even in the representation of the characters in volume 16 of Baki the Grappler).