[5] In the 1970s, Gray appeared in a number of television dramas produced by Crawford Productions including Solo One, Bluey, Homicide, Division 4, Matlock Police, and Carson's Law.

She also appeared in film portraying mathematics teacher Miss Greta McCraw in Peter Weir's adaptation of Picnic at Hanging Rock (1975) and in the television mini-series Anzacs and All the Rivers Run.

[6][7] Gray played Ida Jessop in the soap opera The Sullivans for its 16-season run from 1976 to 1983, winning two Logie Awards for her portrayal of the gossipy neighbour.

After the initial showing of her episodes in Australia, a woman from South Australia named Emily Gertrude Phyllis Perry claimed the story was based on her real life experience of being accused of poisoning her husband Kenneth Warwick Henry Perry, by putting small doses of arsenic in his food and threatened to sue the producers, Grundy Television stating defamation.

[11] As a result, any material that coincided with the woman's story was removed for subsequent episode screenings, including the full Australian DVD release of Prisoner.

[15] In the soap’s later years, Gray still had an onscreen presence as the painting of Mrs Mangel was put back on display in the character’s home.