Donald "Don" Lino the Shark (or simply known as "Lino") was the main antagonist in Shark Tale. He was an aggressive, buff, and short-tempered great white shark, who was the leader and boss of the Great White shark Mafia gang and Lenny's and Frankie's father.
Lino seeked revenge on Oscar for killing Frankie.
Lino sent his henchmen after Oscar. However, at the end, Oscar told Lino that an achor killed him, and then Lino and Oscar became friends. He was voiced by Robert DeNiro.