Suggestions by @peterustinov2004

Zooey Deschanel

as Taylor the Chameleon in Bibo the Chameleon (Sony/Columbia Pictures)

Score: +2

Steve Carell

as Bibo the Chameleon in Bibo the Chameleon (Sony/Columbia Pictures)

Score: +2

Betty White

as Rita's Grandmother in Flushed Away (1977)

Score: 0

Geraldine Page

as Mrs. Malone in Flushed Away (1977)

Score: +1

Sean Connery

as Mr. Malone in Flushed Away (1977)

Score: -1

Dom DeLuise

as Sid in Flushed Away (1977)

Score: +6

Don Knotts

as Spike in Flushed Away (1977)

Score: -1

Orson Welles

as Whitey in Flushed Away (1977)

Score: -2

Peter Falk

as Le Frog in Flushed Away (1977)

Score: +6

Marlon Brando

as The Toad in Flushed Away (1977)

Score: +2

Grace Kelly

as Rita Malone in Flushed Away (1977)

Score: +3

James Garner

as Roddy St. James in Flushed Away (1977)

Score: +3

Fred MacMurray

as Luca the Octopus in Shark Tale (1980's)

Score: 0

Keye Luke

as Don Feinberg in Shark Tale (1980's)

Score: 0

Wil Wheaton

as Don Feinberg in Shark Tale (1980's)

Score: 0

James Garner

as Randall Boggs in Monsters, Inc. (1981)

Score: +2

Merritt Butrick

as Randall Boggs in Monsters, Inc. (1981)

Score: 0

Dick Shawn

as Randall Boggs in Monsters, Inc. (1981)

Score: +1

Paul Frees

as Randall Boggs in Monsters, Inc. (1981)

Score: +2

Lenny Montana

as Randall Boggs in Monsters, Inc. (1981)

Score: +1