Marios Angelopoulos, son of Konstantinos (Alexandria, August 6, 1909 - Athens, November 21, 1995) was a highly talented Greek artist, set designer, stage and costume designer of theater and cinema, painter, writer, sketch artist and poet, as well as a well-known philatelist. He was also politically involved as municipal councilor to the Municipality of Athens.

Biography
He was born in Alexandria, Egypt in August 1909. He studied independently with Momir Koronovich and later with PeriklisByzantios as well as in art studios in London and Paris. He started his professional career as a permanent sketch artist for the Sunday edition of the newspaper "Elefthero Vima". He then became involved in theater staging and staged "Hail Nymph" by Gregorios Xenopoulos and "Les dessous de la robe" by Weber and Matisse (in the theater company of AlikiVougiouklaki - Mousouri - Nezer - Gavrielides 1934). After that he embarked on a dynamic career, collaborating with all the theatre troupes of Athens in the state and free theatres of Greece.

Before the Second World War, he staged Hamlet at the Old Vic Theatre in London with Laurence Olivier, while in 1937 he took over the direction of Marika Kotopoulis' Rex technical workshops.

He has also worked as a scenographer and costume designer in France, Germany, Italy, Yugoslavia, Turkey, Egypt and Cyprus. For a decade he collaborated with Kostas Mousouris(1952-1962), in numerous plays such as "The Diary of Anne Frank", "Street Scenes", "Invitation to the Tower". He also collaborated with the National Opera in "Aida", "Carmen" etc., at the Athens Festival, as well as in English and Greek films.

His theatrical work covered almost all genres of musical and theatrical spectacles and exceeds 420 plays. His stage designs are estimated at 6.000 and his costume works (costumes) are estimated to be ten times as many as his stage designs.

Marios Angelopoulos was also active in literature and poetry. He wrote the plays "Babel", and "Achalinoti lefteria"(Unbridled freedom), he wrote his own poems and translated poems by Lorca. He also published an album with engravings of Athens landmarks/locations.

A collector of Olympic stamps, he had participated as of 1971 in a number of philatelic exhibitions in Greece and abroad focusing on the "History of the Olympic Games". In 1977 he founded the Association of Philatelic Exhibitors and served as the first president.

He served as a councilor of the municipality of Athens from 1964 to 1967, where he was to remain after 1974. He served as a councilor to the municipality of Athens from 1964 to 1967, where he was to remain after 1974. He was also a member of the Chamber of Fine Arts of Greece (EETE), member of the Artistic Professional Chamber of Greece, member of the Association of Theatre Technicians of Greece, member of the World Union of Theatre Technicians, and member of many philatelic societies in Greece and abroad with a large and remarkable collection of stamps. He was awarded the Grigorios Xenopoulos Prize in 1954, the bronze medal of the Paris-based Société Academique "Arts-Sciences-Lettres" in 1966 and the medal of Chevalier de l'Ordre des Arts et des Lettres in 1981.

He also spoke Arabic, French, German, English and Italian and was a permanent resident of Athens. He died on the 22nd of November 1995 at the age of 86.