Doxic is one of the last remaining survivors of the demon race after his homeworld was blown to smithereens by the Dem-Force who wanted to convert every single demon into pure evil. Considering there were good demons, a gigantic war occurred against the Dem-Force and the demons from their homeworld which caused it to be destroyed. Fortunately, Doxic and Zarmon managed to escape the planet's destruction.
Doxic's personality matches Weegee II's because they're both cocky and moody. Weegee II and Doxic constantly argue and are most definitely rivals.