Mati Klooren was born in Tallinn. His younger brother was actor Enn Klooren. In 1961, he graduated from the Tallinn State Conservatory's Performing Arts Department. Since 1961, he was an actor at the Estonian Drama Theatre. From 1983 until 1989, he was the head of Estonian Drama Theatre. Besides theatre roles he played also in several films.
- 1969: Meritorious Artist of the Estonian SSR
This section needs expansion. You can help by adding to it. (June 2021)
- "Klooren, Mati - Eesti Entsüklopeedia". etbl.teatriliit.ee. Retrieved 17 June 2021.