Ann B. O'Brien (sometimes credited as "Ann O'Brien" and "Anne O'Brien") appeared in three roles in Coronation Street:
- As Baldwin's Casuals worker Florrie Smethurst in February 1985
- in September 2003 as Norma Radcliffe who attended the funeral of Neil Fearns
- As a Woman in Roy's Rolls in April 2015.
She was originally a singer and appeared on the talent show New Faces in 1978 and has made many appearances for troops over the years. She has also appeared in All Saints, The Trip, 999 and Heartbeat.