Sanada Masayuki is the father of Sanada Yukimura and Sanada Nobuyuki, who debuts in the spinoff, Sengoku BASARA Sanada Yukimura-den.
Yukimura calls him Oyaji-sama (father), and he is described as an 'illusionist' with a tricky moveset.
He battles against Mitsuhide and Nobunaga to save Katsuyori. Despite his best efforts, he is defeated and Nobunaga kills Katsuyori.