Masoud Assadolahi started his artistic career at a young age. He is a graduate of the Tehran Dramatic Arts University and a member of Movie Actors' Syndicate of America. He is an actor, director and screen writer of many movies, TV series and plays.

He was introduced to Theater while in high school. Then he met a group at the "Etelaat" newspaper and "kakhe Javanan". He worked on the Irish American writer's plays :"Eugene O'Neil". He went to work for the Dramatic Arts Institute and worked with Ali Nasirian. At nineteen he had the chance to go on stage with "Loretta Noushin" who had returned to Iran after her exile in Russia, the play was called "Wedding The Italian Style". He also acted in "Hokoomate Zamane Khan" at the "25 Shahrivar" theater.
He played the TV series "Payvand" directed by Nosrrat Karimi which made him famous. Later he produced and wrote his own TV series :"Adam and Eve". Masoud acted in movies such as "Doroshkechee", "Aramesh dar Hozoore Deegaron" and "Dozd va Paseban".

He was the screen writer for over twelve Persian movies and made his first movie: "Ali Konkoori". Masoud's career continued by producing movies like "Hamsafar"and "Baba Khaldar" and made his hallmark by another TV series 'Talagh" (Divorce) in thirteen episodes for which he was honored with a Television Award for the best TV series in 1355.

Sohrab Shahid-Saless, the well known Persian movie producer, in an article regarding one of Masoud's play: "Bye Bye Los Angeles", wrote: " the value of Masoud's works is that they are easy to comprehend and he delivers the concepts in a way that everyone can see them as if you are gazing in the mirror ".
Masoud went to London to make a series called " The Report", which was put on hold due to the revolution. He returned to Iran. With a false sense of freedom he made the movie "Gharanteeneh" which faced problems and censorship a year later.

Masoud left Persia in 1984 with the hope of returning a year later, but he is still away from his country. He lived in Europe for 5 years and then USA where he is currently living for the past 15 years. For the past several years he's been producing a variety of programs for the Persian international broadcasting radio and TV stations in the US and is planning to produce a film on the Middle East.

Masoud has produced and acted in many plays in the past 20 years away from home. London, 1984: Ayeneh ( Mirror) London, 1985: Otello dar sarzamine ajayeb USA, 1993: Shabe Aseghi USA, 1996: Bye Bye Los Angeles USA, 1998: Adam va Hava USA, 2003: Divorce, the American style. USA, 2004: Visa to Heaven
He also produced and played in two TV series : "Payvand", and "Roya ye Amricaee (the American dream)"
Today he is working on a new play : The Ring.
With no doubt Masoud is a true ICON in Persian theater, movies and TV series with unique characteristics of his own.
Anton Chokhov the great Russian writer said: " if you want to be happy, try to make others happy, because it will come back to you".