Gandalf is by and large even-tempered and good-humored. He is strict in many ways, but also understands the innate childishness of the Hobbits; and, rather than condemning it as others in the trilogy tend to, he usually delights in it. He is also well known for his fireworks, and skill with illusion related magics. He carries both a staff and a sword (Glamdring), an unusual situation for a wizard.
He is shown repeatedly to be incorruptible, though not infallable. Gandalf's reactions to actions by other characters also provide an objective morality by which to judge them.
Here is an image of Gandalf the Grey as shown in the recent movie the Lord of the Rings.
The image is also used in Decipher's
Lord of the Rings Trading Card Game.
