Katherine Emily Hewlett
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Kate Hewlett (born December 17, 1976 in Toronto, Ontario) is a Canadian actress, writer and songwriter.
Her brother is actor David Hewlett, who portrays Rodney McKay in Stargate: Atlantis. Kate guest-starred as McKay's sister Jeannie in four episodes of the show. She also co-starred with him in the 2006 film A Dog's Breakfast.
She recently wrote and starred in the off-Broadway production of Humans Anonymous, the winner of Best of Fringe and Best Ensemble at the 2006 Toronto Fringe Festival.
- Jeannie Miller (ATL: "McKay and Mrs. Miller", "Miller's Crossing", "The Shrine")
- Jeannie Miller from Alternate timeline (ATL: "The Last Man")