Though Jessica is one of the well known name in the Australian film industry, her personal information is unknown in the media. She loves to keep her personal profile low and secret and there is no any information related to her love affairs, boyfriend, married life, loving spouse and divorce.
Jessica's elder sister Penny McNamee who is an actress is her inspiration and idol. She dreamed to be an actress since her childhood days and then in her early 20s, she won the role of Lisa Duffy in an Australian television soap opera Home and Away. From 2008, she began starring in the TV series Packed to the Rafters playing the role of Sammy Rafter. In 2010, she appeared in the short movie 50-50 and in 2012, she appeared in the movie The Vow playing the role of Gwen Thornton. The actual figure about her annual salary is unknown but her net worth is said to be around $1.5 Million.