US actress Sarah Wayne Callies poses during a photocall for the TV show 'The Walking Dead' as part of the Mipcom international audiovisual trade show at the Palais des Festivals, in Cannes, southeastern France, on October 9, 2012. AFP PHOTO / VALERY HACHE
Credit: VALERY HACHE
Sarah Wayne Callies attends Wizard World Chicago Comic Con 2014 at Donald E. Stephens Convention Center on August 22, 2014 in Chicago, Illinois.
Credit: Daniel Boczarski
Actress Sarah Wayne Callies attends Hitfix and Lucasfilm's Comic-Con Kick off party during Comic-Con International 2014 at Hotel Solamar on July 23, 2014 in San Diego, California.
Credit: Jerod Harris
Actress Sarah Wayne Callies visits the SiriusXM Studios on August 4, 2014 in New York City.
Credit: Astrid Stawiarz
Sarah Wayne Callies seen at LAX on July 29, 2014 in Los Angeles, California.
Richard Armitage (L) and Sarah Wayne Callies attend Warner Bros. Pictures' The Big Picture, an Exclusive Presentation at Cinemacon 2014 - Day 4 held at The Colosseum at Caesars Palace on March 27, 2014 in Las Vegas, Nevada.
Credit: Michael Tran
Actors Richard Armitage, Sarah Wayne Callies and director Steven Quale visit the SiriusXM Studios on August 4, 2014 in New York City.