I don't know who the starhead guy is. The only hint I have is from this tweet.
Aqua NecklaceJojoCeserDragon Quest Heroes IIElizabethGintamaHoshiArakawa Under The BridgeKatagiri AnjuurouJojoUshijima KaoruYamikin Ushijima-kunTsukihara ShunMogura No UtaTakahashi NobuoDragon HeadKinoshita ToukichirouNobunaga ConcertoPrince LuneNeko No OngaeshiSerizawa TamaoCrowsHiruma IchirouTerra FormarsYoshihikoYuusha Yoshihiko To Maou No Shiro