The Ninja King is the highest achievable rank within the ranks of the CROWN Ninja. It is a title of succession, awarded when the previous Ninja King is either killed in battle or unable to perform his (or her) duties any further.
It is unknown exactly how many Ninja Kings there have been, but we know of at least two.
- Ninja King I - Debuted in Classic Strip 057. This Ninja King reigned between the kidnapping of Bark, until the Great Battle of Quagmire, when he was accidentally disintegrated by a stray blast by The Great Quagmire.
- Ninja King II - Debuted in Classic Strip 305, with the reunited Cult of the Quagmire. He was easily defeated by Hawk shortly after his debut. During Bank Robert Goes To Hell, NKII and Bank Robert became very good friends. This Ninja King was killed by [NAME REDACTED] before the events of New Hawk & Croc