Suggestions by @harrissyed

Richard Dreyfuss

as Robert Kelly in X-Men Trilogy (Alternate Casting)

Score: +1

Nick Stahl

as Iceman in X-Men Trilogy (Alternate Casting)

Score: +1

Rachael Leigh Cook

as Rogue in X-Men Trilogy (Alternate Casting)

Score: +1

Kevin Nash

as Sabretooth in X-Men Trilogy (Alternate Casting)

Score: +1

Natalie Portman

as Rogue in X-Men Trilogy (Alternate Casting)

Score: -1

Lucy Liu

as Mystique in X-Men Trilogy (Alternate Casting)

Score: 0

Jim Caviezel

as Cyclops in X-Men Trilogy (Alternate Casting)

Score: 0

Charlize Theron

as Jean Grey in X-Men Trilogy (Alternate Casting)

Score: +2

Angela Bassett

as Storm in X-Men Trilogy (Alternate Casting)

Score: +1

John Hurt

as Magneto in X-Men Trilogy (Alternate Casting)

Score: 0

Russell Crowe

as Wolverine in X-Men Trilogy (Alternate Casting)

Score: +1

Ben Kingsley

as Professor X in X-Men Trilogy (Alternate Casting)

Score: -1

Kevin Nash

as Sabretooth in Alternate Casting: X-Men Film Series

Score: 0

Ben Kingsley

as Charles Xavier in Alternate Casting: X-Men Film Series

Score: +2

Robert Downey Jr.

as Tony Stark in Mark Ruffalo’s The Incredible Hulk (2008)

Score: +2

Yasiin Bey

as Gale in The Infinity Saga (Alternate Casting)

Score: +1