Una McNulty appeared on Coronation Street in three roles:
- Nurse Anna Leith, who attended Zoe Tattersall as she went into labour in August 1997
- Debt collector Mrs Gardner, tracking down client Gwen Davies and appearing between May and June 2000
- Josie Hodge, mother of teenage father Jackson Hodge, appearing between March and June 2015.
She trained at Bull Alley and The Actors Workshop.
Her other credits include roles in Peak Practice, Emmerdale, City Central, Always and Everyone, Merseybeat, Eyes Down, Doctors, Linda Green and Hollyoaks, along with the 2017 film Dark River.
On stage, she appeared in productions of Blood, Sweat and Tears, Lucky Sods, Confessions of a City Supporter, Broken Glass, Christmas Crackers, Me and Me Dad and Muddy Cows.