The Masters Family (マスターズ家?) is a rich family from the Street Fighter series. They are the heads of the Masters Hotel hospitality, hostel, and resort enterprise in the world of Street Fighter. The Masters are also known to run a charity enterprise by the name of the "Masters Foundation", with a sponsorship shown at the Osaka Finals in the tournament of Capcom vs. SNK 2: Mark of the Millennium 2001.
When Ken was about 12 years old, his father, a rich hotel tycoon, thought that his son needed to learn about discipline, or his son would become a spoiled brat all of his life and try to leech onto the Masters' family fortune. In order to do so, the elder Masters sent Ken to Japan to train under his best friend, the mysterious karate master Gouken.
In Street Fighter II V, Ken calls his father in several episodes for financial assistance. When Zoltar informs M. Bison that the one fighting Vega, Ken, is a member of a family as rich as the Rockefeller family, Shadaloo captures Ken. M. Bison contacts Mr. Masters and wants a ransom of 1 billion dollars. While he gathers the money, Masters's friend Ortega calls Guile and Charlie to assist in finding Ken. Ken's mother also has a brief appearance.
In Street Fighter: Assassin's Fist, Ken's father visits his son during his training in Japan, wanting him to return home and join the family business. However, Ken believes he is not ready yet and decides to finish his training with Ryu and Gouken.
Appearing in a short story in All About Street Fighter Zero 3, he visits Ken while his nephew hosts a celebration ceremony in his recent victory in the Pan American Fighting Tournament. An accomplished first rate manager of the Masters' family business, it is he who persuades and encourages Ken to take up the Masters legacy. 
- Ken and his family attend church services every Sunday.