Marie Cerone

Marie Cerone is the holder of the patent Meredith needed for her research and an old family friend.

History
Marie came to Seattle to meet with Meredith when Meredith asked for use of her polymer in research. When she arrived, she and Meredith realized they knew each other when Meredith was a child because Marie and Ellis were best friends. They caught up on the lost time and then Meredith made her proposal. Marie was still unconvinced and so Meredith had Taryn bring out the mouse they had saved by secretly using Marie's polymer. Marie agreed that it was revolutionary and said after she had a good night's sleep, they'd meet and talk business. However, Meredith learned shortly afterward that Marie and Ellis had had a falling out, which is why they didn't remain friends and that Marie had likely stolen Meredith's idea.

Familial
She went back to Spain after time in the US because her father wanted her to run his company. Later, she took over when her father died.

Friendships
She and Ellis were best friends for many years when Meredith was a child until they had a falling out.

Career
She is a doctor.