Boi is Sharpay's dog. He appeared in High School Musical 2. He made a shorter cameo in High School Musical 3: Senior Year. He is portrayed by the pet dog of Kenny Ortega (the director of the HSM series).
"Hi, Boi!" -Sharpay Evans
He makes his second and appearance after the song "A Night To Remember", while being held by Tiara.
His final appearance is in Sharpay's Fabulous Adventure when he falls in love with Roger Elliston's dog Countess.
Sharpay takes Boi to the Lava Springs Country Club with her while making the Lava Springs Staff carry her other stuff while she carries Boi. She lets Boi have a tummy rub while she gets a facial.
While Sharpay enters school you could see Boi's picture in a snowglobe she kissed it. He was being held by Tiara Gold when she's singing A Night To Remember (Reprise).
He falls in love with a dog named Countess while Sharpay thinks Boi totally opposes her. Boi and Countess run away together and when Peyton Leverett finds them they lick each other (kiss).