Who played Patsy Stone's sister in the British sitcom "Absolutely Fabulous"?

"Absolutely Fabulous", also known as "Ab Fab", is an award-winning British television sitcom created by and written by Jennifer Saunders who also stars as one of the main characters alongside Joanna Lumley and Julia Sawalha. It is based on the 1990 French & Saunders sketch "Modern Mother and Daughter", created by Saunders and Dawn French.

The series features Edina Monsoon (Saunders), a heavy-drinking, drug-abusing PR agent who spends her time failing to lose weight and chasing bizarre fads in a desperate attempt to stay young and "hip". Edina is joined by magazine fashion director Patsy Stone (Lumley), whose drug abuse, alcohol consumption and desperate promiscuity far eclipse Edina's.

Kate O'Mara (10 August 1939 – 30 March 2014) was an English film, stage and television actress, and writer. O'Mara made her stage debut in a 1963 production of The Merchant of Venice. She made several television appearances throughout the 1990s, including playing Jackie Stone (Patsy's older sister) in two episodes of Absolutely Fabulous (1995–2003).