In June 2013, Samuel L. Jackson expressed interest in appearing in the show as S.H.I.E.L.D. director Nick Fury,[REF] his role from the MCU films,[REF][REF] which led to his cameo appearance at the end of this episode [REF].
In October, Marvel revealed that the episode would be titled "0-8-4", and would be written by executive producers Maurissa Tancharoen, Jed Whedon, and Jeffrey Bell, with David Straiton directing.