Threads seems to have moved to a login-only setup similar to Twitter; I can no longer see anybody's profiles on the web site. I'm not about to register an account with Meta, so I won't be able to find any more Orville people. I'll still add them if anybody with a Threads account finds them and leaves a comment, but this post is a much less useful resource if non-members can't see what they're saying.
EDIT 4:
Seems like they've rolled back that restriction again? Here's a couple more recurring cast members: