Jessica Marais Net Worth, Biography, Movies And Pictures. Jessica Marais is the South African-Australian actress and also the richest celebrity and ranked at No. 6 in the list of top 10 richest celebrity of South Africa with an estimated net worth of US $ 6 million. She is best known for the television series “Packed to the Rafter” for her role of Rachel Rafter and as the Lily Diamond on the “Magic City” television series. She has receives the award of “Logie” for most popular and new female talent in the 2009 Logie Award.