who plays selena gomez, miley cyrus, mandy vanduyne, maya kibbel, nicole anderson, chelsea staub, david henrie, lucas till, justin gaston, cody linley, greg garbowsky, mitchel musso, emily osment, camilla belle, brenda song, aly stoner, ashley tisdale, vanessa hudgens, zac efron, taylor lautner, jordin sparks, jordin pruitt, honor society folk, or the wonder girls?