He was born Aramais Vardan Hovsepian (Armenian: Արամայիս Վարդան Յովսէփեան; Persian: آرامائیس وارطان هُوسپیان), on 21 February 1921 in Tabriz.

He moved to Tehran in 1954 and joined the theater group of Ararat Club and worked with celebrities like Joseph Vaezian, Samuel Khachikian, and Aramais Aghamalian.

He made his first screen debut in Khachikian's first film, The Return (1953), and opted to act mainly in his following pictures: A Girl From Shiraz, Crossroads of Incidents, Blood and Grace, Storm in Our Town, A Cry at Midnight, and Apprehension.

Arman was one of the distinctive actors of the 1950s and 1960s Iranian cinema, and the brand of characters he portrayed was mostly rich people gone bankrupt or confronted with serious problems.

He died on August 8, 1980, at the age 59 in Barcelona and was buried at Christian Armenian Burastan Cemetery in Tehran.