Chara

"Life's not just a battle of strength. It is also an emotional conflict. But if you're cruel, cold, and avoid attachment like me, you'll survive. It's 'kill or be killed' after all."

-Chara to her arch-nemesis, Sans Gaster

Chara was an enormous threat to the Multiverse during the Age of Reclamation. In another life, Chara was a quiet yet approachable orphan who longed for love but buried deep within her, there were always genocidal impulses. At first, she only had a lust for all human blood but after her adoptive brother, Asriel, supposedly "betrayed" her and her soul became lost, her hatred for everything living, as well as her megalomania, began to form. The thought of violence and suffering made her quite giddy and her goals always revolved around causing the greatest amount of pain to the greatest amount of people, even at her own expense.

Powers and Abilities
Though Chara's soul entered Frisk's body at the end of the First Battle of the Subspace, it was due to the dimensional rift that had occurred rather than by Chara herself. However, over the course of three months, Chara began to take complete control over the pacifist's body. And thanks to Sans' risky move at the end of the Battle of Megalovania, Chara was able to inhabit her own body and finally exhibit the power that had been growing within her for years. During the battle against Sans, she wielded Frisk's knife, a weapon that was formerly meant to be used for defense but was now meant to be stained with dust and blood. And once she had her physical form, she transferred all her soul's power into it. With it, she was able to teleport herself and R11 to long distances. Once she had defeated Dr. Strange, she destroyed the Time Stone and used it to bring back the Subspace.

Appearances
-HTMWW: Act II: The Rise of Darth Jar Jar (metaphysical form)

-HTMWW: Act III: Insanity

-HTMWW: Act IV: The Final Effort