Valakou was born in Kavala in 1930 and her family moved to Athens when she was 16 years old. She attended the Dramatic School of Vasilis Rotas. She got her first theatrical role in 1946 and performed with the famous Greek actor
Aimilios Veakis. In the early 1950s she became known as an "ingénue", before joining the
National Theater of Greece, where she starred in productions of plays by
Shakespeare,
Charles Morgan,
Bernard Shaw and
Jean Anouilh,
Arthur Miller and others. From 1958 she had her own theatrical group. She performed more than 120 roles including Maria Stuart, Hedda Gabler, Juliet, Nora, Bernarda Alba, Electra, Antigone, Cassandra, Medea, Agauë, Iphigenia, Jocasta, etc. She played Ophelia in a 1955 production of Hamlet and Electra (directed by Spyros Evangelatos) in 1972. Her most recent appearances on stage were in the title roles in
Martin Sherman's
Rose in 2000 and
Stephen Temperley's
Madame Flo in 2011. She appeared in more than fifteen films, and also worked in radio and television, mostly in plays adaptations. She was a teacher at the
National Theatre of Greece Drama School for some twenty years. Her career spanned six decades and she received multiple awards for her performances throughout the years. In 1958 she was awarded the prize "Marika Kotopouli – Best actress". In 2002, she was recognized by the
President of the Hellenic Republic for her lifetime achievement. In
Kavala, her birthplace, the Antigoni Valakou theatre was named in her honour. ==Death==