El Dorado - A former mexican Wrestler who was born with a bacteria in his bone structure, that processes bone and turns it into gold.
This fact had several consequences. A gold bone structure made him extremely heavy so he had to develop extreme strength to be able to move like a regular human.
On the other hand, being so heavy, even has a baby, his mother quickly became incapable of lifting him up. That lack of motherly contact, made him a very needy person, with a tendency to violence and destruction in order to get attention.
Flash - The fastest sloth in the universe. So fast you’ll rarely see it move.