Kisame Hoshigaki is also known as the Monster of the Hidden Mist. He is from Kirigakure and belongs to the Hishigaki clan. After he joined the Seven Swordsmen of the Mist, he became an S-rank missing-ninja. He, later on, joined the Akatsuki and was partnered up with Itachi Uchiha. 

Kisame is very tall and muscular, in fact, he was the tallest member of the Akatsuki. His features distinctively resembled a shark and this is due to his pale green/ blue grey skin.