Sotaro Yasuda (保田 聡太郎, Yasuda Sōtarō, born January 29, 1986), known as Sotaro (聡太郎, Sōtarō), is an American actor and model in Japan.

Sotaro was born in Newport Beach, California.

He attended Corona del Mar High School and University High School in Irvine, where he was the club president for the Japanese Club.

He is attended at Keio University in Japan as an economics major.

He is the youngest of three brothers, one of which is Naohisa Adachi (足立 直久, Adachi Naohisa), who was known for his role as Kengo Tachibana/B-Fighter Kuwaga (橘健 吾／ビーファイタークワガー, Tachibana Kengo/Bīfaitā Kuwagā) in B-Fighter Kabuto.