Australian singer, songwriter and actress. She is best known for her years in Australian soap opera Neighbours as Bree Timmins. Her next role was in the children's television series As the Bell Rings, which aired on the Disney Channel. In 2007, she appeared as Desma, the lead character in the short fantasy film Hugo. From 2009 to 2011, she starred in the HBO series Hung as Darby Drecker. In 2012, Sianoa featured in the TV movie ABC Firelight and the series It's Always Sunny in Philadelphia. The following year, she starred in All Cheerleaders Die. Sianoa and her husband John Rush, a music producer, also wrote and produced the song Take a Bite of My Heart, which was featured in the film and performed by Sianoa.