Liam is a genius who has never gotten less than 100% in anything. He comes from a very wealthy family and is considered to be destined for success. He is cold and difficult to approach, but despite his rotten attitude (or perhaps because of it?), He is very popular, often getting numerous love confessions from very bold students.

He's the student council president, but spends most of his time sleeping rather than assisting in student activities. His closest friend is Alex Harvey, his total opposite. 

When he and Alex met Amber, a magical fairy from Glimmer, he soon after activated the powers to become the warrior of Kindness and Loyalty, Emerald Heart. However, he found himself having difficulties with using his powers.

As Emerald Heart he has powers over nature and plant-life.