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Sasha Williams played by Sonequa Martin
Rick Grimes played by Andrew Lincoln
Two major characters from AMC's The Walking Dead series are acting on borrowed time.
First, let us look at Sonequa Martin. Ms. Martin will be starring as the lead character in the new Star Trek series Discovery. It is to debut in 2017. Sonequa is the major talent on this series, not unlike when she played Tamara on ABC's series Once Upon A Time. She played a minor role with only several recurring episodes. With Star Trek Discovery, she is the star.
Final Analysis: Sasha Williams will die attempting to end the life of mega villain Negan. Sasha will take down several key Negan followers but Negan will survive.
Second, Rick Grimes. Original cast member. Leader of the group. Literally the heart and soul of the epic series. Which means his time is due. The comic book canon had him dying in the first several episodes so his acting on screen is merely a mirage.
Rick has already given his goodbye speech to Michonne and everyone knows Carl will become the eventual leader of the rag tag survivors.
Final Analysis: Rick survives the season 7 finale airing this Sunday night but call him unemployed for season 8. Rick goes down swinging and takes Negan with him in an epic one on one battle set in a "Thunderdome" type setting. two men enter, both men die.