High Quality Content by WIKIPEDIA articles! Danielle Rousseau is a fictional character on the ABC drama television series Lost, which chronicles the lives of over forty people after their plane crashes on a remote island somewhere in the South Pacific.Croatian actress Mira Furlan plays the scientist who shipwrecks on the island sixteen years prior to the crash of Oceanic Flight 815. After Furlan decided to leave the show, the American actress Melissa Farman was chosen to portray a younger version of the character in the fifth season. Furlan later reappears for one episode in the sixth season. Rousseau is a recurring on-island character who has appeared in nineteen episodes in seasons one through four, as well as one episode where her voice alone is heard.