Allen Johnson is the main character of Prehistoric Earth: A Natural History. The enigmatic co-finder and manager of Prehistoric Earth, Allen has spent the longest time of anyone at the park and has a vast range of knowledge about various animals, both of the past and present, in the park and out in the world.
Allen is second-in-command and right-hand man to Jo Buskirk, his boss and mentor, as well as mother-figure. A world-famous animal expert and highly experience adventurer, Allen is in charge of the animals the park needs and is the head of all Prehistoric Safari Rescue expeditions. He reports to Jo whenever the mission is over and whenever the new one is coming.