Best known for his role as the lovable stoner Doc on the hit SyFy series Z Nation. Russell has become a beloved figure in the horror and sci-fi world, with his signature mix of humor, grit and heart, he  became a fan favorite, surviving all five seasons. He has also appeared in numerous films including Tim Burton’s Big Fish, 21 & Over and Zombies of Mass Destruction, as well as making guest television appearances on Grimm and Leverage.