Board Thread:General Discussion/@comment-4436931-20190405044030/@comment-4436931-20190410014428

A theory based on the OP and episode 28:

The unknown #9 in the OP is the captain of the "Team K" version of the American team, considering the OP only shows the players in Group A. The people who've been stealing the data are Scoglio and Melania who've been giving the data to him, who is either of their sons or perhaps their younger brother. Their greed for money is perhaps linked in some way to why he's a Disciple of Orion since Hino mentioned they'd explore why people obey Orion