yohan jetsi sheriffdeen (born 20 february 1925 – died 21 june 1992 as ) [sinhala]), popularly as stage name gemini kantha, was an actress in sri lankan cinema. one of the earliest pillars of sinhala cinema, kantha is considered as the first female comedian in sinhala cinema. she was a pioneer comedy actress known as "josi baba" and singer in early sri lankan cinema.