He's definitely over 500 years old, but he looks like a teenager. Red Son is irritable and impressively short-tempered demon. He is an inventor of sorts, creating a multitude of weapons, though many of them fail in execution. He has a flair for the dramatic.
Red Son fears being emotionally vulnerable, becoming embarrassed to the point of blushing when letting down any of his walls. He is often uncomfortable receiving physical affection, even from people he isn't antagonizing. 