Atkinson, a proud mum, recently showed off her hot bod in a magazine.
She gave birth to their first child a daughter Lucy Ratliff in 2014.
She was even nominated for many awards for her theatre performances.
Her parents Valinn and Fred Denig used to run a family jewelry business.
Post her graduation, Maggie Siff temporarily worked at a hedge fund, which contributed to her experience, when she was cast in the Billions.
The program ran for seven seasons and followed the lives of a close-knit outlaw motorcycle club operating in Charming, a fictional town in California.