How is or isn’t Artemis a credible character?

Artemis's last name, Fowl, plays off of the hunter contained within his first name. "Fowl" are birds that are hunted. While Artemis is the hunter, Fowl is the prey. Therefore, within Artemis's name, there is the potential for great power—that of a hunting goddess—as well as loss of power—that of an animal which has been hunted. Throughout the text, we do not know if Artemis's plots will succeed, a fact which has been suggested to us simply by his name. "Fowl" also contains an illusion to Artemis's character: it is a homonym of "foul," which means evil, wicked, or sinful. This points to Artemis's general state of being: someone who is wicked on purpose, because he is intelligent enough to do so without facing harsh consequences.