Mart Sander Mart Sander is an Estonian singer, actor, director, author, artist, and television host. started his singer career in the choir of the Estonian National Opera. He has released almost twenty sound discs, most of which he is the producer himself. Mart Sander Mart Sander is an Estonian singer, actor, director, author, artist, and television host. is a member of the congregation of the Peter-Paul Cathedral in Tallinn Tallinn, the largest city and capital of Estonia (population 440 000). and a knight of the Order of St. Stanislaus. Sander speaks seven foreign languages and has been engaged in translation.  Mart Sander Mart Sander is an Estonian singer, actor, director, author, artist, and television host. 's books have been published in Estonian and English. Sander is active as a painter, theater artist and book illustrator. He has acted in several films and has also directed his own films and TV series.