Angélica González was born in Figueres, Catalonia, and went on to study psychology and dramatic arts. Liddell began writing plays during the 1980s. In 1993, she founded the theatre company Atra Bilis Teatro.
Her works have been performed in Spain, Germany, Brazil, France and Chile; her work been translated into French, English, Portuguese, German, Polish and Russian. Besides plays for theatre, she writes poetry and prose.