<Li> Emma (McCall Clark) is another Sharpette . </Li> <Li> Unknown Wildcats player (Shane Harper) is the principal dancer . </Li> <Li> Girl At Pool (Miley Cyrus) is an unknown dancer at the end (cameo). </Li> <P> The premiere of High School Musical 2 aired at 8 PM Eastern Time on August 17, 2007, and included a telecast hosted by Kenny Ortega and the movie's cast . On Saturday, August 18, Disney Channel aired "High School Musical 2: Wildcat Chat", in which the stars of the movie answered questions posed by fans . On August 19, Disney aired a sing - along version of the movie . On May 23, DirecTV announced that they would be hosting an exclusive high - definition airing of the movie a few days after the August 17 premiere on its network - only channel, The 101 . </P>

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