Answer
In 1990, Fiona Shaw won the Laurence Olivier Award for Best Actress for her exceptional performances in four remarkable plays: Electra, where she portrayed a tormented princess seeking vengeance; As You Like It, in which she brought Rosalind's wit and charm to life; The Good Person of Szechwan, tackling the complexities of morality and compassion; and Machinal, capturing the struggles of an oppressed factory worker.