Envy

Envy (エンヴィー, Envī) is the embodiment of some of Father's envy. Envy has the ability to shapeshift. This ability can be used to assume the form of any existing person (or original personas that Envy himself creates). He can even modify his own voice to directly copy others. Being a homunculus, Envy technically has no sex. Although he is capable of taking the form of both male and female people, he is usually referred as a male, and takes a male form mostly.

Envy, who exists only to make humans suffer, bears more bitter resentment for humans than any other homunculus, and negatively treats with humans in the most personal and heartfelt manner. His hatred for humans has an immense emotional and personal foundation greater than any of his siblings'. Envy can easily be set off by insults due to his large and delicate ego, thus causing him to make mistakes.

In the Manga and 2009 anime, Envy is one of the two homunculi who possesses a "true form", being a physical incarnation of their traits and personality that take form when their Philosopher's Stone is almost completely depleted. The other homunculus with a true form is Pride.

In the 2003 anime, Envy is actually the only homunculus with a "true form", with his true form in that series being the reincarnated homunculus of Hohenheim of Light and Dante's son.