More 15+ Thora Birch Walking Dead Gamma
More 15+ Thora Birch Walking Dead Gamma. The walking dead season 10 airs every sunday on amc and fox uk every monday evening. Thora birch is an american actress who portrayed mary in amc's the walking dead. So while the walking dead hasn't shown gamma before, fans can deduce she is important to the whisperers' leadership hierarchy. And while gamma may be forced to whisper on the show, the woman who plays her, thora birch (of ghost world and american.