Frank Lapidus Frank's role in the first half of season four was diminished, and some planned storylines were carried over into the fifth season. Frank's introduction, along with the three other new characters from the freighter introduced in season four, was well received, as was his return in season five. "Lost" executive producer Damon Lindelof confirmed in an interview that Lapidus would be a series regular for the show's sixth and final season. Originally from The Bronx, New York, Frank was the intended pilot of Oceanic Airlines Flight 815, which crashed on an island in the South Pacific. He is first encountered
Danielle Rousseau crew picked up a radio signal emanating from the South Pacific, which was a repeating set of six numbers: 4, 8, 15, 16, 23 and 42. While attempting to find the source of the signal, the ship ran aground on rocks surrounding the island. Before reaching the shore, Rousseau and her team found Oceanic 815 survivor Jin-Soo Kwon (Daniel Dae Kim) in the water, who had been time-travelling as a result of the time shifts which had been moving him and the flight survivors through the island's history. Rousseau later tells the survivors of Oceanic 815 that two months after