Suggestions by @lukehoffman

John Powell

as Composer in Treasure Planet

Score: +2

James Cameron

as Director in Treasure Planet

Score: +2

Skeet Ulrich

as Leland Hawkins in Treasure Planet

Score: +2

Liam Neeson

as Captain Nathaniel Flint in Treasure Planet

Score: +2

Geoffrey Rush

as Billy Bones in Treasure Planet

Score: -1

Billy Connolly

as Billy Bones in Treasure Planet

Score: -1

Marisa Tomei

as Sarah Hawkins in Treasure Planet

Score: -2

Diane Lane

as Sarah Hawkins in Treasure Planet

Score: +3

Benedict Cumberbatch

as Scroop in Treasure Planet

Score: -1

Laurence Fishburne

as Mr. Arrow in Treasure Planet

Score: 0

Tara Strong

as Morph in Treasure Planet

Score: +1

Ryan Reynolds

as B.E.N. in Treasure Planet

Score: +2

Kate Beckinsale

as Captain Amelia in Treasure Planet

Score: -1

Hayley Atwell

as Captain Amelia in Treasure Planet

Score: +1

Emily Blunt

as Captain Amelia in Treasure Planet

Score: +5

Martin Freeman

as Dr. Delbert Doppler in Treasure Planet

Score: +2

Jeff Goldblum

as Dr. Delbert Doppler in Treasure Planet

Score: +2

Hugo Weaving

as Long John Silver in Treasure Planet

Score: 0

Mason Thames

as Jim Hawkins in Treasure Planet

Score: +1

Mason Thames

as Jim Hawkins in Treasure Planet

Score: +4