AMC released the official key art from the highly-anticipated mid-season return of “The Walking Dead” Season 9, premiering Sunday, February 10 at 9:00 p.m. ET/PT, featuring a first look at Samantha Morton as the Whisperers leader Alpha. **SPOILER ALERT: The second half of “The Walking Dead” Season 9 finds our groups of survivors, both old and new, continuing to deal with the impact of events that took place during the six years that have passed.**