Le Canard sauvage
Richardson began acting when she was 10. At the age of 13, she performed in A Christmas Carol at the Gate Theatre. In 1968, she played Hedvig Ekdal in an RTÉ television production of Henrik Ibsen's The Wild Duck with Ann Rowan, Christopher Casson, T. P. McKenna, Blánaid Irvine, Geoffrey Golden, and Maurice Good.