Jennifer Maas TV Business Writer Creator of “The Walking Dead” franchise Skybound Entertainment has tapped Activision Blizzard vet Kaleb Ruel as vice president of marketing for its in-house video game studio. During his tenure at Activision Blizzard, Ruel was a key part of the record-breaking launch of “Diablo IV,” which marked the fastest-selling game in Blizzard’s history at $666 million in sales within its first five days.