"There is so much about the story and the character that drew me in! I love that [Charlie] is a strong, intelligent, powerful woman who has these weaknesses and vulnerabilities," she explained on Facebook. "I love her patriotism and sense of duty and honor. I love her relationship with the president played by the incredible Miss Alfre Woodard."

And although she loves her new talented cast, Heigl also can't help but gush about her Grey's Anatomy family. When asked who she still keeps in touch with, Mrs. Josh Kelley revealed a long list of friends.

"T.R. [Knight] is family! He's my daughter's Godfather and one of the best friends I've ever had!! Justin [Chambers] and his lovely wife Keisha are good friends, Kate Walsh is my lady hero!" she wrote. "I pretty much love everyone else on Grey's! Great cast, great group of people!"

State of Affairs premieres Nov. 17 at 10 p.m. on NBC.

(E! and NBC are both part of the NBCUniversal family.)

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