- Operation Chromite, CJ Entertainment presents ; in association with Korean Broadcasting System, KBS Media Co., Ltd., Union Investment Partners, IBK-Daesung Contents Small Giant Fund, Daesung Win-Win Fund, Timewise Investment, Korea Investment Partners Co., Ltd., IBK Securities Crowd Funding ; a Taewon Entertainment production ; produced by Chung Tae-won, Yang Chang-hoon ; screenplay, Lee Man-hee, John H. Lee ; original screenplay, Chung Tae-Won ; adaptation, Kim Jae-hwan, Chung Tae-won ; director, John H. Lee ; English version produced by CJ Entertainment in association with Bang Zoom! Entertainment, Inc. ; producer (CJ Entertainment), Sam Maseba ; producer (Bang Zoom! Entertainment), Eric P. Sherman