(Moderator's note: Original title was "Remove Admin from User Menu")
I have created a client administrator role which is essentially an Editor with ability to add/remove users. The article "Editor can create any new user except administrator" was excellent in helping keep my new client admin role from editing or creating a True admin user.
However what would be ideal is to hide administrators from client admins when they are viewing users. I want them to "believe" that they are the admin of their site but I do not want them to be able to even view my role/user--essentially hiding the "administrator" role from them when they are in the "Users" panel.