Leo has a warrior-like personality, which befits his role as the leader of his kingdom's military corps. He follows the laws of his kingdom closely, as he demanded Robin give a weapon or her clothes in exchange for her freedom. He is also trusted by the other dwarves in the kingdom to lead them into battles, and to issue commands and instructions when needed. Like his fellow dwarves, Leo is extremely gullible. However, he appears to possess an additional, humorous measure of obliviousness.