Olesya Yurivna Rulin (born March 17, 1986) is a Russian-American actress. She is best known for co-starring in the first three films of the High School Musical franchise as Kelsi Nielsen. She also starred in the films Private Valentine: Blonde & Dangerous (2008) and Flying By (2009).
Known For

Black Bags
Tess
2023

The Rookie
Danielle Bloomfield · (1 episode)
2018

Devious Nanny
Amber
2018

SEAL Team
Jenna Robertson · (1 episode)
2017

Becoming Bulletproof
Self
2015

Powers
Calista · (20 episodes)
2015

Family Weekend
Emily Smith-Dungy
2013

Touch
Red Dress · (1 episode)
2012

A Thousand Cuts
Melanie
2012

Apart
Emily Gates
2011

Expecting Mary
Mary
2010

NCIS: Los Angeles
Zasha Gagarin · (5 episodes)
2009

Drop Dead Diva
Mia Dalton · (1 episode)
2009
Chuckle Boy
Assistant
2009

Flying By
Ellie
2009

Private Valentine: Blonde & Dangerous
Private Petrovich
2008

High School Musical 3: Making Of A Musical
Self
2008

High School Musical 3: Senior Year
Kelsi Nielson
2008

Forever Strong
Emily's Friend
2008

The Mentalist
Sam Starks · (1 episode)
2008

High School Musical 2
Kelsi Nielsen
2007

Greek
Abby · (10 episodes)
2007
Road To High School Musical 2
Self
2007

American Pastime
Cathy Reyes
2007

The Dance
Cameron's Ex-Best Girlfriend
2007

High School Musical: Remix
Kelsi Nielsen
2006

Vampire Chicks with Chainsaws
Sariah
2006

High School Musical
Kelsi Nielsen
2006

Mobsters and Mormons
Julie Jaymes
2005

Urban Legends: Bloody Mary
Mindy
2005

Halloweentown High
Natalie the Pink Troll
2004

NCIS
Kim Troutman · (1 episode)
2003

CSI: Miami
Andrea Williams · (1 episode)
2002

Everwood
The Drunk Girl · (1 episode)
2002

The Poof Point
Annie
2001

Hounded
Girl #1
2001

Family Guy
Russian Meg Griffin Double (voice) · (1 episode)
1999

Touched by an Angel
Student (uncredited) · (1 episode)
1994