Maria McDermottroe is an Irish actress, best known for portraying Molly Ivors in John Huston's The Dead, and Bridey Hannon in Alan Parker's Angela's Ashes.

Her stage career began with Hilton Edwards and Micheál Mac Liammóir at the Gate Theatre in the 1970s.

[2][1][5] McDermottroe's first theatre role was in a production of The Merchant of Venice featuring Micheál Mac Liammóir and Hilton Edwards.

[2] In 2010, McDermottroe's performance in an Eska Riada production of Frank McGuinness's one-woman play Baglady in the Focus Theatre, was described by Jesse Weaver of Irish Theatre Magazine as a "measured, taught, and ultimately arresting ... portrait of an identity nearly dissolving itself".

[16] McDermottroe married John Costigan, future Executive Director of Dublin's Gaiety Theatre, in 1979,[1] having first met in 1977.