Leonidas, often known as Big Leo, is a Blackguard and member of Kip Guile's Blackguard squad: The Mighty. He is a Red/Sub-Red Bichrome.
Aside from being large and muscular, he is described as having shoulders like a draft horse and arms of banded iron.
Leo's parents were both circus performers; his mother an acrobat, his father a strongman. Leo inherited his father's size and strength, and from practicing with his mother, he is also very agile, especially for a man of his size. Both of his parents died in the War Of The Prisms, apparently because his father was not a skilled fighter despite his great strength. As a result of this, Leo vowed to become the best fighter he could be, so that he would never be vulnerable like his parents unfortunately were.
The Burning White[]
Big Leo, like the rest of the Mighty, received a gift from Andross Guile before the final battle at the Chromeria. He received a large heavy chain comprised of bronze links, with bands of special wood from a tree that lights on fire easily does not burn up. Using special gloves Big Leo can use sub-red to wreathe the entire chain in flames. He also receives a large helmet with the visage of a lion.