Envy Humonculis

An effeminate figure with a dry wit, Envy (エンヴィー, Envī?) has the ability to shapeshift. Normally, he uses this power to assume the form of any person and copy their voice, but he has also shown the ability to transform into non-humanoid shapes and change his limbs into blades. Like most other Homunculi, he has strength and agility beyond what his body should be capable of. He uses attacks ranging from simple punches and kicks to capoeira-like techniques. Envy is most comfortable in the “adorable” form of a young androgynous human. Envy usually serves as an imposter who gathers information unnoticed, using his shapeshifting ability to carry out efficient assassinations. Envy’s favored technique for murdering humans is to impersonate someone the target cares deeply for, and use their natural hesitation as the opportunity to kill them.

... i love the bad guys