I just can't see getting worked up about this. The writers and producers of NuTrek have a pretty good record of fucking with the fans. Is he really supposed to be Harrison T Backgroundski from TOS? Maybe. Maybe he's really Garth and this is all part of JJ's elaborate scheme to get fans worked up. Maybe the secrecy is just his own weird fetish. It's not like you don't expect to see feet in a Tarantino flick.