Stupid Oltl question?

I HAVE BEEN LOOKING @ THE OPENING 2 THE SHOW. I NOTICED HOW THEY HAVE SHANE IN THE OPENING CREDITS. I HAVE NEVER NOTICED MATTHEW IN ANY. i SEE ALL THE OTHER TEENS. IS IT AN OVERSIGHT OF MINE OR IS HE THE ONLY TEEN THAT IS NEVER IN THE OPENING? ANOTHER QUESYION IS IF REX IS SUCH A GREAT P.I. WHY HASN'T HE REALLY FOCUSED ON FINDING HIS FATHER? I MEAN HOW HARD IS IT TO OUTSMART ROXY