William Brent

as Billy Stone

as Zack Taylor (as Billy Unger)

as Ben

as Hatchling Sammy (voice)

as Young Rock (as Billy Unger)

as Additional Voices (voice, as Billy Unger)

as Young Chev

as (voice)

as Prince Charming

as Additional Voices (voice)

as Sammy Benson

as Screaming Boy (voice, uncredited)

as Robby North (as Billy Unger)

as Charles Gates

as Funch

as Chase Davenport

as Chase Davenport

as Chase Davenport

as Neville

as Troy Cotten

as Wesley

as Marty Bedell

as Eric (as Billy Unger)

as Young Joey / Teddy Carmichael

as Pete Murphy

as Chad

as Jeff Reed

as Devin

as Handicapped Kid / Kid #1 / Other Kid (voice)