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"O'Brien's clear, bright and strong soprano lifts even the most cynical of hearts."
-Bangor Daily News
"She has the voice of an angel."
- Ellsworth  American

Holly is currently playing the role of Christine in MISS JULIE 1925 with Strindberg Rep at Theatre for the New City, in NYC.


Holly recently played the role of SARAH in the New York City premiere of HIROSHI-ME, ME, ME by Natalie Menna ,with the August Strindberg Rep Theatre Company at Theatre for the New City, in NYC.

Holly performed the role of STEPMOTHER in INTO THE WOODS with Connecticut Stage Company in October, 2023. 


Holly performed the role of CORA in Eugene O’Neill’s THE ICEMAN COMETH as a benefit for The Actors Fund.

Holly performs with Timatha Kasten and the SANTA GIRLS in NYC for the holidays in a three part harmony, "Andrews Sisters" style holiday show! 

Holly performed the role of GLINDA in the WICKED portion of the concert, "There's No Place Like Home" with the Rockland County Choral Society, Directed and Conducted by Russell Wagoner in Nyack, NY. 

Holly was seen in the role of MINNIE in the new play, "GLASSTOWN", by Don Nigro and Directed by Ivette Dumeng, with Nylon Fusion Theatre Company in NYC.

Holly played the role of EILEEN DAWSON, in a workshop of the new musical, "MY FATHER'S PLAY", with music and lyrics by Neville Gude and directed by Laurence C. Schwartz in NYC.

Holly played the role of Peggy in THE TAFFETAS at SEVEN ANGELS THEATRE in Waterbury, CT

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