Heiða Rún Sigurðardóttir known by her stage name Heida Reed, is an Icelandic actress and model. She is known for playing parts in One Day, Jo (2013), Silent Witness (2014) and the BBC drama Poldark. Reed was born in Iceland, the middle of three children of a music teacher father and a dental hygienist mother. She grew up in Breiðholt, Reykjavík, and attended Ölduselsskóli. Aged 18, she was recruited by an Icelandic modeling agency, and moved to Mumbai to work as a model in India for two years. When she was 19/20, she settled in London, where she studied drama at Drama Centre London, graduating in 2010.