One-time Neighbours star Kym Valentine is suing producers of the show for compensation, claiming they subjected her to sex and disability discrimination.
Valentine, who played Libby Kennedy in the long-running series, alleges FremantleMedia Australia failed to provide a safe working environment.
She is asking to be rehired in the role which she played for more than 15 years.
According to documents obtained by Fairfax, Valentine wants compensation for "pain, hurt, suffering and humiliation" and lost wages.
Valentine has been unwell in recent years after first suffering pneumonia and then a collapsed lung in 2008. She was in ill health again in 2010 and has been on sick leave for the last two years.
Her contract with the show is believed to have expired in 2011.
The production company and Valentine would not comment.