Gyarados is a species of Pokemon in the Game Freak and Nintendo s Pokemon franchise. Gyarados initially appeared in Pokemon Red and Blue , the video game and its subsequent sequels. It appeared later in various merchandise, spin off titles, and both the printed and animated versions of the franchise. Gyarados is evolved form of Magikarp and its known for its fierce temper and reputation for causing destruction. It generally never calms down until everything surrounding it is destroyed. It is not as powerful as it used to be but entire teams and coastal towns have been ruined by a wild Gyarados. In the Japanese and in English, the voice over is by Unsho Ishizuka.