[2] Born in London,[1] Langrishe is the elder daughter of Patrick Nicholas Langrishe TD (1932–2022), of The Manor House, Sellindge, Kent, a Lieutenant in the 11th Hussars, later Major in the Leicestershire and Derbyshire Yeomanry, and Penelope Jill, daughter of Royal Navy Lieutenant-Commander Kenneth Horley.
Amongst her roles was Anya in Gill's 1978 production of The Cherry Orchard[4] Her first big part was in the 1978 British adaptation of Les Misérables.
That same year, she made her big-screen debut, playing the part of Loretta, the receptionist to Robert Morley's character in Who Is Killing the Great Chefs of Europe?
From 2001 to 2007, she appeared as regular character Georgina Channing, Donald Sinden's daughter, alongside Martin Shaw in the BBC TV drama Judge John Deed, playing his ex-wife[1][4] and then joined the BBC medical drama Casualty, playing executive director Marilyn Fox.
[citation needed] In September 2010, she played the character of Susan Fincher in an episode of Midsomer Murders entitled Blood on the Saddle.