
Acting
Born in Vlădești, Argeș County, he graduated high school in Câmpulung in 1967 and Bucharest's Caragiale Academy of Theatrical Arts and Cinematography in 1971. He made his theatrical debut a year before graduating, at the Bulandra Theater, in Truman Capote's The Grass Harp. His screen debut came in Dan Pița's Nunta de piatră (1972); he would later appear in the same director's Filip cel Bun (1975). Other directors with whom he has worked include Alexandru Tatos (Mere roșii, 1975; Secvențe, 1982; and Secretul armei secrete, 1988), Virgil Calotescu (Buletin de București, 1982; and Căsătorie cu repetiție, 1985), Nae Caranfil (Asfalt Tango, 1996; and Filantropica, 2002) and Cătălin Mitulescu (The Way I Spent the End of the World, 2006). In all, he has appeared in more than sixty films. Diaconu worked with Lucian Pintilie both in film (the 1981 De ce trag clopotele, Mitică?) and in theater: Gogol's The Government Inspector at Bulandra, and Shakespeare's As You Like It at the Nottara Theater. Liviu Ciulei hired him at Bulandra in 1972, and he remained there for a decade, before moving on to Nottara. At Bulandra, he appeared in Twelfth Night and The Tempest, both under Ciulei's direction; and in Marin Sorescu's Răceala, directed by Dan Micu. At Nottara, he appeared in Alexander Ostrovsky's The Forest; Ultimul bal, after Liviu Rebreanu's Forest of the Hanged; and Mihai Ispirescu's Într-o dimineață. He became the director of Nottara Theater in 2004, working as such until his resignation in 2011.

Ticăloșii
2007

Bucharest Identity Card
1982

A Smile Of The Sun
1987

Kino Caravan
2009

Dănilă Prepeleac
1996

Love Sick
2006

A Tense August
1974

Red Apples
1976

The Way I Spent the End of the World
2006

Repeated Wedding
1985

Happy End
2006

Toma Caragiu - Momente de aur
2003

The Secret of the Secret Weapon
1988

Philanthropy
2002

Horea
1984

This Above All
1978

Asphalt Tango
1996

Poker
2010

The Telephone
1992

The Computer Testifies
1982

Căruța cu mere
1983

The Stone Wedding
1973

The House Between the Fields
1980

Operation 'The Bus'
1978

Shootings Under the Moonlight
1977

Oil
1977

A Light on the 10th Floor
1984

The Poseidon Explosion
1973

Reach for the Sky
1990

Videograms of a Revolution
1992

Happenings with Alexandra
1989

A Summer Tale
1976

The Actress, the Dollars and the Transylvanians
1978

Flames Over Treasures
1988

Farewell, Dear Nela!
1972

To Paris with the Identity Card
2015