Smith is source of comic relief in the Ginga Nagareboshi Gin story. He's also the leader of the 3rd platoon. Often he jokes around but he is always loyal to his pack. He and Gin share a special bond. He saves Gin from Sniper's attack and injures himself in the process. Later he is wounded by a bear in the attack of Akakabuto's allies. He is saved by Gin when they get surrounded by a group of bears. After he healed up from resting he leads Takeda Gohei to the battle scene with Akakabuto and Gohei shoots Akakabuto making the giant bear collapse.

In Ginga Densetsu Weed smith is a serious character. He is a respected and feared old soldier. He's missing his right leg and it's revealed in manga that he lost it while saving GB from a truck. He meets Weed and travels with him to Ou where they find a giant moster dog Kaibutsu terrorizing the lands. Smith enters Gaijou to fight Kaibutsu and sacrifices himself hoping that the rocks will bury him and his enemy. However, Kaibutsu survives and Smith's heroic death turns out to be in vain.