Mader was born in 1977 in Cambridge, England. She worked as a model in New York City for a year, appearing in adverts for L’Oréal, Colgate and Wella Hair. She began her television career on the ABC daytime soap operas All My Children as Morgan Gordon, and One Life to Live as Margaret Cochran.  She also appeared on the soap opera Guiding Light in 2003. Mader has made number of guest appearances on television shows. In 2006, she had a series regular role of the short-lived Fox legal drama, Justice. In 2008, Mader began starring as anthropologist Charlotte Lewis on ABC series Lost. Mader’s first husband was businessman Joseph Arongino, whom she divorced in 2008. She appeared in the show from 2008 to 2009 and in two episodes in 2010. In 2011 she had a recurring role on No Ordinary Family, and in 2012 she made a guest starring appearance on the FOX science-fiction series Fringe, as Jessica Holt. Also in 2012, Mader starred in the short-lived ABC comedy series Work It. In June 2013, Mader made her stage debut in the role of Barrie in the one-act comedy The Third Date at the Hollywood Fringe Festival. In December 2013, Mader was cast as Wicked Witch of the West, a new antagonist for the second half of the third season of Once Upon a Time (in which Mader’s fellow Lost star Emilie De Ravin also starred). She also made guest appearances during the second half of season four and was later promoted to a series regular for seasons five and six. On 29 December 2014, Mader announced her engagement to producer Marcus Kayne.The two were married on 23 November 2016. In May 2017, Mader announced that she would not be returning for the seventh season of the show, due to a creative decision by the showrunners. However, in September 2017, it was announced that Mader would be reprising her role as Zelena in a recurring capacity for the second half of the seventh season.

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-Source of the Auto biography is from the site Bex mader Brazil-