Olesya Rulin aka Kelsie Nielsen
Olesya Rulin played the talented and shy pianist/ composer Kelsi Nielsen. Kelsi portrayed the importance of helping others. Her character taught Troy and Gabriella how to read sheet music and prepared them for callbacks.
After graduating from the HSM franchise, Rulin appeared in the drama series Greek as ZBZ sorority sister and was cast as Calista Secor in PlayStation Network’s first original scripted show Powers. Most recently, Rulin has been seen in an episode of NCIS: Los Angeles and Lifetime movie Devious Nanny.
