Siobhan Redmond was born on 27 July 1959 in the Tollcross area of Glasgow, the second-eldest of three children to Charlotte Redmond, a drama teacher, and John Redmond, a university lecturer. Her mother, Charlotte, died of breast cancer when Siobhan was only 23 years old.

Redmond attended Park School for Girls in Glasgow’s West End. She studied English at St Andrews University and was said to have been “discovered” by playwright Liz Lochhead while performing in a student Mermaids society production. She undertook a one-year postgraduate year at the Bristol Old Vic.

She began appearing on television in the early 1980s, firstly in the sketch show There’s Nothing to Worry About! in 1982. She featured in two series of Alfresco in 1983 and 1984, but her first major television success was as George Bulman’s assistant Lucy McGinty in Bulman (1985–1987). Over four decades she has worked consistently across TV, theatre, radio and audio drama.

She narrates Born to Be Wild, a BBC Scotland documentary series following the staff at the SSPCA Wildlife Rescue Centre in Clackmannanshire — the place where orphaned and injured wild animals from all over Scotland find help from a dedicated team of vets and carers. Siobhan has described it as her “favourite job.”

Siobhan Redmond has kept her personal life entirely out of the public eye, and reliable sources do not list any spouse, long-term partner, or children.