Gina Costigan is an Irish actress, best known for her work on stage. She appeared in the original Broadway companies of Jez Butterworth's The Ferryman and Martin McDonagh's Hangmen.^[1]

Costigan was born in Dublin, Ireland. She is the daughter of former Gaiety Theatre Executive Director, John Costigan, and Irish actress Maria McDermottroe.^{[2][3][4][5][6]}

She holds a BA (Hons) from Queens University Belfast, and an AA from the New York Conservatory for Dramatic Arts.^[2]

Costigan made her professional stage debut as a street child in the 1994 revival of James Plunkett’s The Risen People at The Gaiety Theatre. Staged as part of the Dublin Theatre Festival, the production was co-directed by brothers Peter and Jim Sheridan, marking their professional reunion.^[7] At the time, The Risen People was the most expensive event in the festival's 35-year history.^[8]

Costigan made her screen debut as crime figure John Traynor's girlfriend in 2003's Veronica Guerin, appearing opposite Cate Blanchett.^[9] She would go on to have supporting roles as Caroline in 2007's Becoming Jane, and Jocelyn in 2024’s The Friend.^[10][11]

In 2011 Costigan starred as Sandra in The New Theatre, Dublin's production of Isobel Mahon's Billy the Boat Loves Angelina. This play tells the story of three young siblings, Susan, Sandra and Tim Smith, who in various ways are caught up in the drugs scene in Dun Laoghaire.^[12] In review for The Irish Times, Peter Crawley would note "Gina Costigan gives an assured performance under Caroline FitzGerald’s sparing direction... the three performers neatly construct the Hades of a drugs den while each portraying one menacing figure, Rayo, with admirable bite."^[13]

In 2016 Costigan made her Off-Broadway debut in Honor Molloy's Crackskull Row at the Irish Repertory Theatre.^[14][15]

In 2017 she appeared in The Suitcase Under the Bed, a combined bill of four plays by Teresa Deevy at the Mint Theater Company. The production was named a "Critic's Pick" by The New York Times.^[16]

In 2018 Costigan starred opposite Hayley Mills in  Isobel Mahon’s Party Face at New York City Center. For their respective performances, Costigan and Mills were both nominated for Best Actress at the 2018 1st Irish Awards.^[17] Later that year Costigan joined the original Broadway company of Jez Butterworth’s The Ferryman, understudying the roles Caitlin and Mary Carney.^[18] The production would go on to win the 2019 Tony Award for Best Play.

In 2019 Costigan appeared alongside her mother Maria McDermottroe in Michael Scott's adaptation of The Valley of the Squinting Windows at the Mullingar Arts Centre.^[19] Later that year she starred in the critically acclaimed revival of Joe Crilly's On McQuillan's Hill at the Finborough Theatre in London.

In 2022 Costigan appeared in the original Broadway company of Martin McDonagh's Hangmen, understudying the roles of Alice and Shirley. The production would go on to be nominated for the 2022 Tony Award for Best Play.

In 2023 she appeared as Grace in London Classic Theatre's UK tour of Brian Friel's Faith Healer.^[20] Select tour venues included New Vic Theatre, Theatr Clwyd, Malvern Theatres, The Lighthouse, Theatre Royal, Cambridge Arts Theatre, Hawk's Well Theatre, Millennium Forum, Middlesbrough Theatre, Lichfield Garrick Theatre, Devonshire Park Theatre, and Connaught Theatre.^[21]

In addition to her work on stage, Costigan has had recurring roles on Vikings, Fair City, and The Marvelous Mrs. Maisel.^[22]

The Irish Echo's "40 under 40,” Class of 2019.^[23]

• Gina Costigan at IMDb