Malevolent Entity

"The heart is frail. Its weaknesses are never fully vanquished. Given the opportunity, it can betray you and return to darkness."

- Malevolent Entity

The Malevolent Entity is the primary antagonist of Persona 4 Arena who is currently unnamed.

Persona 4 Arena
As the true mastermind behind the events of the game, it was the Malevolent Entity who had Labrys thrown into the Midnight Channel after tampering with the artificial maiden's memories. It sought to use the events of the game to break the wills of those involved and turn their Personas into Shadows, to recruit the other selves for a currently unknown goal. It is however revealed that the Malevolent Entity has allied itself with an ordinary human in order to use the human to find something the Malevolent Entity refers to as 'the One True Vessel'. This human, identified only as the Eerie Voice, is implied to have a connection to the Kirijo Group, as he shows himself capable of utilizing Kirijo Group protocols and taking control of Kirijo Group technology such as Labrys at will.

While its true form is unknown, the Malevolent Entity exhibits a wide range of powers; It is capable of appearing out of and disappearing into thin air at will, shape-shifting, duplicating the powers of others, telepathy and even outright mind control, among other abilities. The Entity appears before the Shadow Operatives and the Investigation Team posing as their Shadow Selves in order to weaken the protagonists' resolves throughout the game, and eventually serves as the final boss for Naoto Shirogane and the Shadow Operatives' story modes.

Trivia

 * Patrick Seitz, the voice actor of the Malevolent Entity, is also casted as Nyarlathotep in the Persona 2 duology, the SAT Captain in the beginning of Aigis' Persona 4 Arena story segment, and the announcer for the English voice over for Persona 4 Arena.
 * The Malevolent Entity also uses the same methods that Nyarlathotep used in the Persona 2 duology, by transforming into the protagonists' shadows and fighting them with their respective Personas.
 * After fighting Kanji Tatsumi in his story mode, the Malevolent Entity reveals its true voice and motives, while still in Shadow Kanji's form.