 Although it had not always been the plan , the Missing Pieces were produced by ABC Studios . Executive producer Jack Bender directed each mobisode , with writing duties divided between executive producers Lindelof and Cuse , supervising producer Elizabeth Sarnoff , co @-@ producer Brian K. Vaughan , executive story editor Christina M. Kim , and co @-@ executive producers Drew Goddard , Edward Kitsis and Adam Horowitz . Other crew members included executive producer Bryan Burk of post @-@ production and co @-@ executive producer Jean Higgins of physical production . " The Envelope " — a deleted scene from the third season premiere ; the only mobisode not to be originally filmed and written for Lost : Missing Pieces — contained additional credits : Jeff Pinkner is an executive producer and executive producer J. J. Abrams is a co @-@ writer . 
