Radhakrishnan Parthiban (earlier credited in films as Ra Parthiepan) is a Tamil film actor, director, film producer and writer. He has worked in more 50 films and has directed nearly 10 films. Parthiepan is known for having directed critically acclaimed films like Pudhiya Paadhai and Housefull and for his performances in films like Bharathi Kannamma, Vetri Kodi Kattu, Azhagi, Melvilasom and Aayirathil Oruvan.
His movies Housefull (1999) and Pudhea Paadhai (1989) won the National Film Award for Best Feature Film in Tamil.
He came from a middle-class family and was born and brought up in Chennai. His father was a clerk in the post and Telegraph department, but his family could never make both ends meet. He started as a stage artiste who used to perform on stages in Chengalpattu and Villupuram. It was getting him nowhere and so he came back to Chennai. There, he made the usual round of going to the producers offices and was finally able to become the assistant of K. Bhagyaraj. At that time, he used to make around Rs 6000 a month by dubbing for various artistes. He made his first film appearance in Raanuva Veeran. Then, he played the role of a postman in his mentor's Dhavani Kanavugal.