A Chorus Line Wiki

Courtney O'Shea (b. circa 1998) is an actress from Merrick, New York. For A Chorus Line, she portrayed the role of Diana Morales in the theater production in CM Performing Arts Center in Oakdale, New York.


Courtney was born somewhere in Nassau County, New York. She grew up in a family home with her younger sister and parents. She began her acting career in her youth, presumably in elementary school.

After graduating from Kellenberg Memorial High School in Uniondale, NY, Courtney went to college in Sacred Heart University in Fairfield, CT, in 2016, where she probably studied theater arts, and graduated in the Class of 2020. During her college years, Courtney worked as a counselor at South Shore Private School & Camp in North Bellmore, NY.

Courtney currently works as an actress in CM Performing Arts Center in Oakdale.

Role on A Chorus Line[]

In December 2022, during the 50th season of CM Performing Arts Center, Courtney auditioned for the role of Diana Morales on A Chorus Line and landed the role. With her role as Diana, her parts include her singing in "Nothing" and "What I Did For Love". When Courtney is absent, ensemblist Rebecca Martowski will understudy the role. The show ran from January 28 through February 11, 2023.

Other Roles[]


  • Oklahoma!: Unknown


  • The Wizard of Oz (Kellenberg Memorial High School): Dorothy Gale


  • Mary Poppins (Kellenberg Memorial High School): Mary Poppins


  • The Prom (CM Performing Arts Center): Ensemble


  • Footloose (CM Performing Arts Center): Ariel Moore