Jack Skellington, also known as the "Pumpkin King," is the main protagonist of Tim Burton's "The Nightmare Before Christmas." He is a tall, skeletal figure with a charismatic personality and a penchant for dramatic flair. As the leader of Halloween Town, Jack grows weary of the same old festivities and becomes fascinated with Christmas after accidentally stumbling upon Christmas Town. His desire to bring Christmas to Halloween Town leads to a series of misadventures. Jack is ultimately a well-meaning character who learns the importance of embracing one's true identity.