guys,i just found the real twitter account of these people..
Allison mack (smallville) = @allisonmack
Micha barton (OC) = @THEREALMISCHA
Mandy moore = @TheMandyMoore
Selena gomez = @selenagomez
Brea grant (heroes as daphne) = @BreaGrant
but only allison mack i've followed..