Joseph Gordon-Levitt as Jim Hawkins (voice)

Brian Murray as John Silver (voice)

Emma Thompson as Captain Amelia (voice)

David Hyde Pierce as Doctor Doppler (voice)

Martin Short as B.E.N. (voice)

Dane A. Davis as Morph (voice)

Michael Wincott as Scroop (voice)

Laurie Metcalf as Sarah Hawkins (voice)

Roscoe Lee Browne as Mr. Arrow (voice)

Patrick McGoohan as Billy Bones (voice)

Corey Burton as Onus (voice)

Michael McShane as Hands (voice)

Tony Jay as Narrator (voice)

Austin Majors as Young Jim (voice)

Jack Angel as Additional Voices (voice)

Bob Bergen as Additional Voices (voice)

Rodger Bumpass as Additional Voices (voice)

Jane Carr as Additional Voices (voice)

John Cygan as Additional Voices (voice)

Jennifer Darling as Additional Voices (voice)

Paul Eiding as Additional Voices (voice)

Sherry Lynn as Additional Voices (voice)

Mona Marshall as Additional Voices (voice)

Mickie McGowan as Additional Voices (voice)

Patrick Pinney as Additional Voices (voice)

Phil Proctor as Additional Voices (voice)

Jeremy Suarez as Additional Voices (voice)

Jim Ward as Additional Voices (voice)

Dee Bradley Baker as Fayvoon / Longbourne / Mertock (voice) (uncredited)

Peter Cullen as Captain Nathaniel Flint (voice) (uncredited)

Austin Farmer as Additional Voices (voice) (uncredited)