Greed

Greed is a greedy Homunculus, nicknamed the "Ultimate Shield". He is able to rearrange the carbon in his body to make his skin as hard as diamond, thus making himself almost impossible to injure. As his name implies he is a very avaricious character, who likes living in luxury, surrounded by powerful minions and beautiful women. Despite his generally greedy nature, he’s shown to honestly care for his subordinates. He also has a habit of flipping people off in the manga.

In the 2003 anime series: Greed is the second oldest of the Homunculi created by Dante. However, due to his avarice, Greed rebelled and was eventually captured and imprisoned in lab 5. He was imprisoned for 130 years until an explosion broke his seal. He then freed the caged chimera at Lab 5 in exchange for helping him get his revenge on the other homunculi and their master.