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.
Γνωστός για: Acting
Γενέθλια: 1973-07-05
Τόπος γέννησης: Kyōto, Kyōto Prefecture, Japan
Γνωστός και ως:
