The voice on the end of the phone, that Wade (Liam Cunningham) calls at 18:53 into the episode, is Brad Pitt's, who also serves as one of the producers of the series.
Ronnie James Dio songs referenced:
(Jin) They will always be the last in line. And none of them will get to sail away.
(Jin) They will always be the last in line. And none of them will get to sail away.