Is Eileen Davidson in High School Musical 3 senior year?

Eileen Davidson is not in "High School Musical 3: Senior Year." The film primarily features a cast of young actors, including Zac Efron, Vanessa Hudgens, and Ashley Tisdale, who portray high school students. Davidson is an established actress known for her roles in Soap Operas and other television shows, but she does not appear in this particular movie.