'Transformers' actress Rachael Taylor will join the cast of 'Grey's Anatomy' for a multi-episode storyline in the new series.

Entertainment Weekly reports that the 26-year-old Australian will play a doctor and will appear in the middle of the seventh season.

The new series of 'Grey's Anatomy' begins on American television on Thursday, 23 September.

Taylor played Maggie Madsen in 'Transformers'.