Everyone always knew that Max had a wild imagination, but no one believed that his wildest creations -- a boy raised by watchful great white sharks and a girl with the force of a volcano -- were real. Now, these two pint-sized action masters will show Max that even an ordinary kid has what it takes to be extraordinary.
Taylor Lautner
as Sharkboy
Taylor Dooley
as Lavagirl
Cayden Boyd
as Max
David Arquette
as Max's Dad
Kristin Davis
as Max's Mom
Jacob Davich
as Linus / Minus
Sasha Pieterse
as Marissa / Ice Princess
George Lopez
as Mr. Electricidad / Tobor / Ice Guardian
Rico Torres
as Sharkboy's Dad
Marc Musso
as Classroom Kid #1
Shane Graham
as Classroom Kid #2
Tiger Darrow
as Classroom Kid #3
