Niall is easygoing and good-hearted. Unlike many other 'Cubi, he is fond of Beings and treats them well. As can often be the case with 'Cubi who have an affinity for fear, he does have a vicious streak but he keeps it tightly under control for the most part. This can sometimes lead him to play pranks or otherwise scare people for the buzz it gives him, but he always stops well short of anything serious and no malice is usually intended. Among his weaknesses, he is perhaps a little overconfident at times, and something of a philanderer.