Niamh trained at the Guildhall School of Acting.
Her previous work at Shakespeare's Globe includes In Extremis.
Other recent theatre work includes Living Quarters, (Royal Lyceum) Indian Ink, (Salisbury Playhouse) A Tread Mark on my Heart, (Theatre 503) Live Like Pigs, (Guildhall at The Royal Court Theatre) The Misanthrope, Martin Crimp adaptation, (Guildhall at The Bridewell Theatre).
Television credits include: Holby City.