Tarkov was a male Wookiee who lived on the planet of Kashyyyk. During the Clone Wars, Tarkov took his son, Jaccoba, on a hunt. On Tarkov's command Jaccoba threw his spear, accidentally hitting a wall of shrubbery, which made a metallic sound. Tarkov went to investigate, and was shocked to see a large Separatist landing craft. He grabbed his son and retreated up to a nearby tree. He watched as a Separatist invasion of the planet began.