Dwayne Johnson as Hank Parsons

Josh Hutcherson as Sean Anderson

Vanessa Hudgens as Kailani Laguatan

Luis Guzmán as Gabato Laguatan

Michael Caine as Alexander Anderson

Kristin Davis as Elizabeth Parsons

Anna Colwell as Jessica

Stephen Caudill as Cop

Branscombe Richmond as Tour Guide

Walter Bankson as Hockey Player

Cody Easterbrook as Palauan (uncredited)

Paul Leo Klink as Nautilus Passenger (uncredited)