She played liaison officer Sarah Caulfield in the eighth series of drama.
In 2016, O'Reilly appeared in the role of Tarzan's mother in.
O'Reilly has appeared in several productions filmed in Australia, including both The Matrix sequels.
Widescreen broadcast on digital - in addition to the above - her right breast is fully seen later on in the scene in a hanging side view while she is leaning above him as they passionately kiss - this nudity was on the far right of the screen and not quite visible on the non-digital broadcast version.
Both these scenes take place in a 1967 flashback sequence.
Going by appearance order the topless maid ought to be Kate Brennan - but it's possible that the credits might be slightly out of order since the woman does look quite like a picture found of Vanessa Keogh Neither maid had any dialogue and it's actually surprising either were credited.
O'Reilly then appeared as a prominent character in from 2002 - 2005 as Leanne Curtis.
Unless it is only very recently after the initial appearance.