Under the leadership of Beng Tian, Kian Sin co-founded The FInger Players and has since committed himself to promoting puppetry art. Besides performing, he also designs puppets, sets and props. He too takes upon the task of personally making them.

His acting credits include Battle of Redhill (The Theatre Practice, Fesitval of Asian Performing Arts, 1997), Medea (Amp-Theatre, 1998), Night of Seven Directors (The Theatre Practice, 1998)

His craft skill can be seen in productions such as The Spirits Play (The Theatre Practice, 1998 Hong Kong tour), Recital of Beings (TCS telemoive by PureGuava Practice, 2000), Accidental Death of a Hero (The Theatre Practice, 2000), The Old Sea (Dance Dimension Project, 1997) and Tall Tales (Imaginarts, 2000).