Jace Wayland is a fictional character from the The Mortal Instruments series, written by Cassandra Clare. He is a Shadowhunter, a human with angelic blood who hunts demons. Jace is known for his exceptional fighting skills, agility, and a strong sense of duty to protect humanity from supernatural threats. In the series, Jace has a complex personality, often displaying a mix of confidence and vulnerability. He has a close relationship with Clary Fray, the series' protagonist, and their bond plays a significant role in the storyline. Jace's character is also marked by his struggles with his past and identity.