Toriko is a Bishokuya with an abnormally large appetite (as a food serving for 500 people could only get him 1/10 full). He is known as one of the "Four Heavenly Kings", and his nickname is "The Glutton". He is an incredibly skilled Bishokuya, having discovered roughly 2% of the approximately 300,000 varieties of known ingredients worldwide, which is around 6000 varieties. He is also the adoptive father figure of a new born Battle Wolf pup named Terry Cloth and is the only human known to have ever tamed a Battle Wolf. He is currently seeking the fabled holy ingredient from Acacia's Full Course Menu, GOD, which is said to be the greatest main dish in the world and hopes to add it to his own Full Course Menu, despite that this ingredient is also being sought after by the brutal criminal organization, the Bishokukai and many other powerful figures. He is currently in a Combo with Komatsu.

Kaiman is the lead character of the manga. He appears to be the victim of a magic user, who laid a curse on his head.
Other than that, he has no recollection of his previous life. He has the head of a large reptile, with no other alternates in limbs or body. There are cross-shaped marks over each of his eyes.
It appears that despite having his head chopped off, he can regenerate it in a matter of time.