Charlotte Morningstar, more commonly known as Charlie, is the Hellborn princess of Hell, the founder of the Happy Hotel, and the main protagonist of Hazbin Hotel. The estranged daughter of Lucifer, Charlie wants to do right by her kingdom and find a way to redeem Sinners into Heaven through rehabilitation at the Hazbin Hotel. standing at over 6 foot, around 6 and a half feet tall. She has long, blonde hair, with lighter blonde and pink highlights, which is tied into a twice-banded low ponytail. Her blonde bangs flip to her left with a curl. While appearing humanoid, Charlie does feature animal-like traits such as fangs and red-toed hooves. Her lips are black and she has rosy red cheeks, which Vivziepop has mentioned taking inspiration from dolls and marionettes. Her eyes have red irises with light yellow sclera. She has thick black eyelashes and gray eyelids. Her fingernails are black and pointed. Charlie accessorizes with a small black bowtie and black suspenders, with an untucked white, long-sleeved dress-shirt. Over this she usually wears a fitted red tuxedo jacket with dark-red lapels and a pair of red fitted pants. She wears black and white saddle shoes. When in her full demon form, a pair of dark-reddish horns protrude from her head. Her eyes' sclera turn bright red with white irises and slit pupils; above and below her eyes appear black streaks, and her eyelashes become much longer and thicker, resembling butterfly wings. She gains a long black tail with spikes and a triangular tip that has a heart in the center, and her fingernails become claws. Charlie is compassionate and empathetic to a fault, feeling genuinely upset at the idea of harm coming to others. Although she isn't unaware that Hell is populated with souls that have committed egregious acts in their living lives, she still views their yearly extermination as a senseless waste and makes it her personal mission to help them avoid it via self-betterment and eventual redemption, something she is seemingly alone in believing is possible.