Unni Mary is also known as Deepa Unnimary. Unni Mary is a film actress and producer who mainly work in Malayalam films. She also made her appearance in multiple languages like Kannada, Telugu and Tamil films. Unni Mary's onscreen name is Deepa.

She was born on 12th March 1962 to Augustine Fernandez and Victoria. St. Teresa’s Convent, Ernakulam was the school from where she had her primary education. At the age of 3, she learned classical dance. She performed in many stages in India as well as abroad, and her mother owned a ballet troupe.

She married a professor at St Albert College, Ernakulam named Rejoy on 12th March 1982. She worked in many films in Malayalam, Tamil, Telugu and Kannada languages. Some of her films are Navavadhu, Ganga Sangam, Sree Guruvayoorappan, Andharangam, Rosaappo Ravikkai Kaari, American Ammayi, Panthulamma, Kadina Raaja and much more.