Actor Rishi Kapoor, who turned 64 on Sunday, made his acting debut as a child artist playing the younger version of his father Raj Kapoor's character in the 1970 film 'Mera Naam Joker'. Rishi, as a teenager 'Raju', featured with Simi Garewal, who played his teacher 'Mary'. Meanwhile, Rishi debuted as a lead actor in the 1973 film 'Bobby'.