She made her first on-screen appearance on 3 October 1994 and departed on 5 November 2004, returning briefly for a single episode on 27 July 2005, before returning on 12 November 2007.
Libby is the only daughter of Karl and Susan Kennedy and the mother to a son, Ben Kirk.
The actress claims the company failed to provide "a working environment that was safe" and that it breached "the relationship of trust and confidence".
Kym, who has a daughter, Millana, who will be 10 next month, first fell ill in 2008 when she suffered a collapsed lung on a flight from the US to Melbourne and was diagnosed with pneumonia.
Choir Girl is a drama set in the 90s about a lonely photographer, Eugene, who becomes obsessed with a fifteen year-old girl who is trapped in the illegal sex trade.
The film, to be shot entirely in black-and-white, is produced by Ivan Malekin of Nexus Production Group and Lucinda Bruce. Cast includes Roger Ward (Mad Max), Peter Flaherty (The Leftovers), Krista Vendy (Neighbours), Andy Mc Phee (Ali.s Wedding), Kym Valentine (Neighbours) and Vca grad Sarah Timm.
Valentine took leave from Neighbours in 2010 due to ill health and returned to the set in January 2011.
The 36-year-old actress wants to return to the show as Libby Kennedy which she played between 19, before taking two years sick leave following a string of health problems.Budget is around half a million, with shooting to take place over 24 days, including a stint at Docklands Studios.Elizabeth Grace "Libby" Kennedy (also Kennedy-Fitzgerald) is a fictional character from the Australian soap opera Neighbours, played by Kym Valentine.She has previously spoken of her upset at producers' decision to cast Michala Banas to temporarily play Libby when she first fell ill in 2008.Kym's lawyer has said she will not comment on the case.
I just wanted to do the best job I could for everyone." Banas explained that Libby is a strong woman with a lot of energy and she tried to keep the essence of the character in her portrayal.