Usagi

Miyamoto Usagi is a character created by Stan Sakai. He first appeared in the Albedo Anthropomorphics magazine, but was popular enough to start his own series, Usagi Yojimbo. On occasion, Usagi has appeared in cross-overs with the Teenage Mutant Ninja Turtles. Hundreds of years before sewers were even evented, Usagi Yojimbo (Rabbit Bodyguard), a skilled but masterless Samurai, wandered ancient legendary Japan. In a freakish burst of reception through Donatello's trans-dimensional portal, this medieval hare wound up thrashing his way through the Turtles' lair, kicking shell and more or less proving a few points with his Katana. Splinter recognized the ronin's skills at once as Usagi repeatedly put the Turtles on the cutting edge. Trapped in Turtle-time, Usagi Yojimbo quickly became a trusted and honorable ally in the ongoing pursuit of pizza and a Shredder-less world.