Gopalakrishnan (born 9 May 1955), known professionally as Achamillai Gopi, is an Indian actor, singer, dramatist, and a voice over & dubbing artist. He has acted in a number of films and TV serials and has also given his voice for various cine actors in Tamil. He is a singer, owns a band called "Gopi melodies" for more than 30 years, and has been consistently performing live shows.

He has acted in several films in Tamil and has done over 1,000 telefilms and serials.

Born in Thanjavur, Tamil Nadu his parents, Mr. M. Venkatraman, a retired Railway officer, and Ms. Meenakshi, named him V. Gopalakrishnan (fondly called 'Achamillai Gopi' today).^[2]

He was trained under the tutelage of guru Shrimaan Kumbakonam Nataraj Iyer, and after a while, started his music troop 'Gopi Krishna' in 1970, facilitating his stage career and passion. Very soon he got the opportunity to do backing vocals for Ilaiyaraaja and sung many songs for composers like Ravindran, Narasimhan and V. Kumar.^[2] Directors Mr. K. Balachander and Mr. Ananthu, screenplay writers Mr. G. Balasubramanian and Mr. Gokulnath, were all working in the AG's office then. He also participated in singing competitions and dramatics.^[2]

In the film Poikkalkuthirai, one of K. Balachander directorial ventures, Mr. Ravindran played an interesting character that required dialogues to be voiced in a very unique manner. Gopi was given the opportunity to dub for this role.^[2] His first onscreen debut was offered by K. Balachander, the man who had also given him his first dubbing project. He was to play a role alongside none other than Mr. Rajinikanth in Thillu Mullu, a Balachander film.^[2]