Cassie Springfield

"Knock knock."-Cassie says to Gaster, The Great Unknown.

Cassie Springfield is a sixteen-year-old girl who first appeared in The Journey Begins. She is one of the two Chosen Ones from the Prophecy, along with Alex.

Appearance
Cassie is a thirteen-year-old when she and Alex first travel through Fantasia. She has curly black hair in a low ponytail and green eyes. She wears a pale green shirt with fuchsia flowers, a blue hoodie, and blue jeans with green slip-ons.

She later gains dark red horns that stick out of her hair, a lion tail with a scorpion barb, large red dragon wings, and leonine ears that poke out on either side of her horns. Her pupils become thin and cat-like, giving her the power to see things from far distances, and her teeth sharpen to a point. As a manticore, she has light brown fur with a lighter brown muzzle, underbelly, and paws. She retains her green eyes, wings, horns, and scorpion-barb tail and is twice as large as a Fantasian lion.

During her battle on the top of Pride Rock with Scarface, he gives her a small scar on her right eyebrow.

Personality
Cassie is strong and loyal to her lion and hyena friends, especially Scar. Ever since she freed Scar from his volcano with her Heartfire Amulet, Alex has been helping him work things out with the residents at Pride Rock. She is also known to use mild cuss words, such as "hell" and "damn". She also tends to be sassy at times and becomes very energetic and excited while she and Alex travel through the Underground, marveling at everything she sees.

Cassie has the same relationship to Gaster as Sans does to Toriel. She met him through the gray door, told jokes with him, and made a promise to protect Alex, just as Sans promised Toriel to protect Frisk.

Trivia

 * It's suspected that Cassie has a crush on Alex.
 * Cassie's dad was like a brother to Alex's, but that doesn't make them related.
 * This is proven when Scarface says that Alex and Cassie's fathers were like brothers to him, thus making them family. However, Cassie immediately shoots down the idea, saying that she and Alex could've never done all the horrible things he did.
 * Yinlong was Alex and Cassie's imaginary friend when they were younger.