Current 39+ Gamma Actress Thora Birch Walking Dead
Current 39+ Gamma Actress Thora Birch Walking Dead. The new series saw a host of thora birch stars as gamma in the walking dead (image: She made her film debut in purple people eater (1988), for which she won a young artist award for best young actress under. Thankfully, uk fans will not have to wait long as the next instalment. The walking dead season 10, episode three airs tonight (sunday, october 20) on amc.