Kelli O'Hara, star of stage and screen, has established herself as one of Broadway's greatest leading ladies. The Tony Award winner, Emmy and Grammy-nominated actress has appeared in eleven Broadway shows for which she has garnered seven Tony Award nominations.

She won the 2015 Tony Award for Best Leading Actress in a Musical, along with Grammy, Drama League and Outer Critics nominations for her portrayal of Anna Leonowens in The King and I. She then reprised the role while making her West End debut garnering a prestigious Olivier nomination for her performance and then performing a limited engagement at Tokyo's Orb Theatre.

O’Hara received an Emmy Award nomination for her portrayal of Katie Bonner in Topic's hit web series, The Accidental Wolf, and can currently be seen as Aurora Fane on HBO’s critically acclaimed series, The Gilded Age.

She has had several recurring television roles such as Showtime's Master of Sex, 13 Reasons Why, Blue Bloods, and All My Children. Additional film and television credits include All the Bright Places, Peter Pan Live!, Sex & The City 2, Martin Scorsese's The Key to Reserva, The Good Fight, N3mbers, and the animated series Car Talk.

O’Hara’s other Broadway credits include Kiss Me Kate (Tony, Drama League, OCC nominations), The Bridges of Madison County (Tony, Drama Desk, Drama League, OCC nominations), Nice Work if You Can Get It (Tony, Drama Desk, Drama League, OCC nominations), South Pacific (Tony, Drama Desk, OCC nominations), The Pajama Game (Tony, Drama Desk, OCC nominations), The Light in the Piazza (Tony, Drama Desk nominations), Sweet Smell of Success, Follies, Dracula, and Jekyll & Hyde.

The Times has hailed her as “Broadway musical’s undisputed queen.”

O’Hara was awarded the prestigious Drama League's Distinguished Achievement in Musical Theatre Award in 2019.

In 2015, she made history as the first artist to make the crossover from Broadway to opera when she made her Metropolitan Opera debut in Lehar's The Merry Widow opposite Renee Fleming and in 2018 returned as Despina in Mozart's Cosi Fan Tutte. She was last seen at The Metropolitan Opera in the world premiere of Kevin Puts’ The Hours, as Laura Brown.

Her concerts have gained international acclaim, spanning from Carnegie Hall to Tokyo. She is a frequent performer on PBS's live telecasts, The Kennedy Center Honors, and performs often alongside The New York Philharmonic and The New York Pops.

Along with her two Grammy nominations, her solo albums, Always and Wonder in the World, are available on Ghostlight.

Season 3 of The Accidental Wolf is now streaming on Topic. Upcoming, season 2 of The Gilded Age is on HBO.

In 2024, O'Hara will return to Broadway in The New York Times Critics Pick new musical, Days Of Wine And Roses. This production, which garnered rave reviews during its Off-Broadway run at The Atlantic Theatre Company last summer, has been a labor of love for O'Hara and composer Adam Guettel, who dedicated the last 21 years to its development.