Captain “Bluecoat” Ackler was one of the Yonkou and the captain of the Ackler Pirates, a huge crew with many divisions. During the Gull Island incident he was captured at Gull Island after killing the Fleet Admiral, and is being held half dead in Impel Down.

His crew was passed onto his first mate Richard Seabright, however there was an offshoot of this crew created known as the Revenge Pirates, who are run by his second division commander Lloyd R Drake.