Crystal is the oldest child of Alexander. She has white, gray, and dark gray fur with light blue ears and upper part of tail. Her eyes are aqua blue. 

Crystal has been described as a cunning wolf. Using her natural abilities as a wolf, she can outwit any hero that journey's too close to her family's territory. She sees this as self-amusement or as a defense mechanism. She is also very gentle with the pups of her leash. She is also playful and somewhat affable, even to the heroes.

Crystal loves and cares for her siblings and only her siblings. She shows little to no respect for the Hero Valleyans. However, she sees herself as a playful trickster rather than a heartless villain. She loves Red and Snow most of all and is seen playing with them.

Trivia:

Crystal is named after her obsession over crystals and magic.

She is the main rival to the former Lion Guard villains and their children. 

Her favorite holiday is Christmas. 

Despite being the oldest, Crystal looks at her younger brother Silver as the leader of their leash.