Ryuichi Kosugi

Ryuichi Kosugi (小杉 竜一, Kosugi Ryūichi, born 5 July 1973) is a Japanese comedian born in Kyoto who performs tsukkomi in the comedy duo Black Mayonnaise along with his partner Takashi Yoshida. His standing position is in the left. He is represented by Yoshimoto Kogyo.

Ryuichi Kosugi is known for work in acting across film and television. New Release currently presents 18 verified screen credits connected to this profile.

Selected work includes 超タッグ祭 (2026), Alice in Wonderland –Dive in Wonderland– (2025), JAPAN SINKS: People of Hope (2021), Ningen Kansatsu Variety MONITORING (2012), Gaki no Tsukai No Laughing Batsu Game (2003), Isekai Izakaya "Nobu" (2020), バナナマン日村が歩く!ウォーキングのひむ太郎 (2021), M-1 Grand Prix (2001). The recorded credits span 2001 to 2026, including 3 movies and 15 TV shows.

The filmography below lists available titles, release years and known roles. This profile is updated as additional verified information becomes available.