Gray's most prominent feature is his spiky black-colored hair. He has dark blue eyes, and his body is toned and muscular.
After the mission on Galuna Island, he gets a scar on his forehead above his left eye that is partially covered by his hair. He also has a cross-shaped scar on his lower abdomen received from using Seven Slice Dance: Blood Version on Tenrou Island. His member stamp is below his collarbone on his right pectoral muscle and is dark blue in color.
Unlike almost all other characters, Gray does not consistently wear the same type of clothes (that is, when he is wearing some), though he is often shown wearing some kind of white coat.
Still, his most consistent pieces of clothing are his necklace, which resembles a sword with a stone in it, a metal bracelet and a chain which is attached to the belt loops on the right side of his pants. After obtaining Ice Devil Slayer Magic from his father, he gains a tattoo symbolizing the magic on his right arm.
Gray has a laid-back personality, but will get serious when the time calls for it. He and Natsu have a friendly rivalry, and while they can often be seen fighting one another verbally or physically, the two are actually quite concerned about each other. Gray was quite obstinate and reckless when he was younger, but over time, he has attained a more cautious attitude towards life, and deals with problems carefully. He is very concerned about his comrades and is truly loyal towards his guild, but tends to trash talk every now and then. Also, he has a disturbing habit of unconsciously removing his clothes at inappropriate moments.
Ice-Make A form of Molding Magic that allows the user to create ice at his will and to shape it into objects. In Gray's case, he uses Static Ice-Make, meaning he can shape his ice into inanimate things or weapons. Ice-Make is known as an extremely versatile form of Magic, coming in useful both in battle, for offensive and defensive purposes, and outside of it. Specializing in it and having been practicing it for years, Gray possesses extreme mastery over it, being capable of creating countless amounts of objects for a multitude of uses. Also, according to him, Ice-Make allows to produce virtually everything, granting the user an unmatched creation capability.