Daryl Sabara

as Derek Khan

as Rex Salazar / Heatblast (voice)

as Heatblast

as Heatblast / Omni-Naut Heatblast (voice)

as Mike (voice)

as Mace

as Heatblast

as Self - Contestant

as Leslie Flowers

as Leslie Flowers

as Matt

as Stoner

as Chips

as Son on Pier (voice)

as Edgar Rice Burroughs

as Rex Salazar (voice)

as Hanson

as Juni Cortez

as Clark Peterson

as Evan

as Julio

as Jason (voice)

as Rex Salazar (voice)

as Apprentice / Caroler / Beggar / Peter Cratchit (voice)

as Kyle Clayton

as Jason

as Russell

as T.J. Taylor

as Wesley Rhoades

as Nathan

as Doogie

as Marco North (voice)

as Benjamin Fiedler

as Lil' Adam

as Kevin

as Tim Scottson

as Jason Hetner

as Gabriel "Gabe" Reilich

as Hero Boy (voice)

as (voice)

as Andy / Scorn (voice)

as Harris (voice)

as Hunter (voice)

as Frank 'Auggie' Wood

as James Talley (Age 10)

as Self

as Juni Cortez

as Self

as Additional Voices (voice)

as Tommy (voice)

as Wesley Silver

as Tommy / Steve (voice)

as Juni Cortez

as Jeffy

as Juni Cortez

as Self

as Corey

as Broccoli Boy

as Self

as Owen