Hokuu

WARNIN- IF YOU HAPPEN TO BE SOMEONE READIN SHARK WARS AND HAVEN'T READ BOOK FOUR YET, DON'T READ ANY MORE

My main fin right here from Shark Wars, Hokuu! He's such an awesome character; manipulative, and ridiculously smart. 
Also, it's pretty cool he is able to wield such immense power as to wipe out all of Riptide's home waters
    "The reward is, you'll be eaten last! Think of it, you get to see the new watery world order become a reality! And then when you swim to the Sparkle Blue after a bite to the gills from Drinnok himself-what an honor-you get to bring the new that the Fifth Shiver has been fully restored...to Tyro himself! I'm almost jealous of you!" 
-Hokuu; Shark Wars: Kingdom of the Deep