Taylor Lautner
Sharkboy
Acting
Taylor Dooley
Lavagirl
Acting
Cayden Boyd
Max
Acting
David Arquette
Max's Dad
Acting
Kristin Davis
Max's Mom
Acting
Jacob Davich
Linus / Minus
Acting
Sasha Pieterse
Marissa / Ice Princess
Acting
George Lopez
Mr. Electricidad / Tobor / Ice Guardian
Acting
Rico Torres
Sharkboy's Dad
Camera
Marc Musso
Classroom Kid #1
Acting
Shane Graham
Classroom Kid #2
Acting
Tiger Darrow
Classroom Kid #3
Acting
Racer Rodriguez
Sharkboy, Age 7
Acting
Rebel Rodriguez
Sharkboy, Age 5
Acting
Rocket Rodriguez
Lug
Acting
Robert Rodriguez
Shark (voice) (uncredited)
Directing
Araceli González
Principal (uncredited)
Acting
Peyton Hayslip
Teacher (uncredited)
Acting
Tania Haddad
Classroom Kid (uncredited)
Acting