She was born in County Down, and since 1971 has been married to award-winning Australian actor and comedian Garry McDonald.
She attended the prestigious National Institute of Dramatic Arts (NIDA), but left after a year, making her debut in 1970 starring in the British Australian feature film Ned Kelly (1970), alongside Mick Jagger.
Her other film appearances included roles in The Mango Tree (1977), Double Deal (1981), The Highest Honor (1982), Travelling North (1987) and A Sting in the Tale (1989).
Craig has also appeared on the small screen in numerous serials, mini-series and telemovies.
She is probably best known for the long-running roles in The Restless Years and E Street (replacing actress Penny Cook as Dr. Elly Fielding), as well as appearing several times in the cult television series Prisoner.