Olesya Rulin won the brilliant role of Kelsi Nielsen in High School Musical - composer, friend and fellow wildcat of Troy and Gabriella.
Through Troy and Gabriella's friendship, we see Kelsi drastically come out of her shell, and start to mingle with people from groups she never thought she'd be friends with!
Here are some facts about Olesya Rulin herself!

Born: 17 March 1986, in Moscow, Russia.
Experience: Trained ballet dancer and model.
Education: Westminister COllege in Salt Lake City, Utah
Athletic Skills: Ice-skating, bowling, rollerblading, water-skiing and golf.
Skills: Dancing, Singing and Firearms!
Did You Know: Olesya can speak, read and write fluently in Russian.

Disney Channel fans - you may recognise Olesya from the Original movie "Halloween Town High" (starring alongside Lucas Grabeel!), where she played Natalie the Pink Troll!
Olesya has also starred in the horror movies Urban Legends: Bloody Mary and Vampire Chicks With Chainsaws.

To learn more about Olesya Rulin's character, check out Kelsi Nielsen's Character Page!