Twilight Sparkle, commonly known as Twilight Sparkle,

 animated television series "My Little Pony: Friendship is Magic". As a fictional character, she does not have a literal heart, but she is depicted as having a kind and caring personality, and a strong sense of loyalty and friendship.

Throughout the series, Twilight Sparkle demonstrates a deep emotional intelligence and empathy towards others. She is a quick learner and has a passion for knowledge, often immersing herself in books and research. Despite her studious nature, she is also a loyal and supportive friend to those around her, always willing to lend a helping hoof or provide sage advice.

Overall, Twilight Sparkle is a compassionate and intelligent character who values friendship and kindness above all else. Her heart can be seen through her actions and the way she treats those around her.