海洋航空
Dominic Monaghan appears as Charlie after a 30-episode absence. Ian Somerhalder also reprises his role as Boone for the first time since the episode "Exposé", while Kimberley Joseph appears as flight attendant Cindy Chandler for the first time since the episode "The Brig", both from the third season. Greg Grunberg recorded lines in Los Angeles for a voice-over reprisal of his role of Oceanic Airlines Captain Seth Norris of Flight 815 that crashed on the island in the pilot episode. Originally, Maggie Grace was set to make an appearance as Shannon, but Grace was unable to film any scenes due to her busy schedule. Thus, the backstory was rewritten to accommodate this.