Top 10 Strongest Impel Down Prisoners in History

CROCODILE

Sir Crocodile is the former president of the mysterious crime syndicate Baroque Works. He was originally introduced as a Shichibukai but was later stripped of his title after attempting to take control of the desert kingdom Alabasta. Thanks to Luffy, he managed to escape from Impel Down and went to Marineford to participate in the war; after that, he and his subordinate Daz Bones decided to head out to the New World.
Crocodile ate the Logia Devil Fruit, Suna Suna no Mi, allowing him to become, generate, and manipulate sand. He has mastered his ability to the point of perfection and can turn into sand reflexively if attacked; this became especially obvious after Doflamingo cut his head off while he was distracted.

MORLEY

Morley is an okama giant and the commander of the West Army in the Revolutionary Army.
Morley ate the Oshi Oshi no Mi that allows him to push away any substance. Seemingly a Paramecia-type Devil Fruit, using this power, he can easily move underground, as well as attack enemies by pushing clumps of ground onto them, as it seems to otherwise maintain its original weight and hardness.
Over 100 years before the start of the story, Morley was a wanted pirate who was imprisoned at Impel Down. Somehow, he managed to escape the prison, a fact that remained unknown for a long time allowing the prison to keep its status as being unbreakable until Shiki’s escape many years later. The tunnels Morley carved with his Devil Fruit abilities would later be known as the Level 5.5, which housed the Newkama Land.
As a giant, Morley possesses tremendous physical strength and a longer lifespan when compared to humans.

PORTGAS D. ACE

Ace was the 2nd division commander of the Whitebeard Pirates and one-time captain of the Spade Pirates. He was the adopted older brother of Luffy and Sabo, and son of the late Pirate King, Gol D. Roger and his lover, Portgas D. Rouge.
Hunted by the World Government for his lineage, Ace was captured and sentenced to death, which resulted in the Battle of Marineford in an all out clash of powers. Ace was freed, but he sacrificed his life to protect his younger brother Luffy from Akainu.
Ace ate the Devil Fruit Mera Mera no Mi, a Logia-type fruit that allows him to become the element of fire and control the flames from his body, giving him his reputation as “Fire Fist Ace”. Aside from the powers granted by the Devil Fruit he consumed, Ace possessed immense physical strength.

EMPORIO IVANKOV

Ivankov is the “Queen” of the Kamabakka Kingdom, known as “Okama King” and a “Miracle Person”, and is one of the Commanders of the Revolutionary Army.
He was formerly a prisoner of Impel Down kept in Level 5, living in a secret “Okama Paradise” in level 5.5, but has since returned to his post as Queen of Kamabakka Kingdom.
Ivankov ate the Horu Horu no Mi, which allows him to control the hormones of the human body, and is one of the very few known powers coming from a Devil Fruit that can affect other people’s bodies as well as his/her own. This power led him to be known as the “Miracle Person”.
In contrast to his rather comical appearance, Ivankov is a powerful fighter should the need arise. He is an extremely powerful grandmaster of a martial art called the Newkama Kenpo.

JINBE

Jinbe was the second captain of the Sun Pirates after Fisher Tiger, and a former Shichibukai, who attained the position eleven years ago. Sometime after Ace’s capture, Jinbe was also imprisoned in Impel Down, due to being the only member of the Shichibukai who refused the summons of the World Government to stand against the Whitebeard Pirates. Currently, Jinbe is is officially the tenth member of the Straw Hat crew and the ninth to join Luffy’s crew.
Jinbe is the most powerful fish-man seen thus far. He is is an exceptionally powerful master of Fish-Man Karate.
He is also extremely skilled in using Busoshoku Haki, as shown when he hardened his arms to defend himself against Big Mom’s Cognac.

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