Suggestions by @egonspengler

Harold Ramis

as Maximilian "Max" Medici in Dumbo (2003)

Score: +1

Daniel Craig

as Holt Farrier in Dumbo (2003)

Score: +1

Austin Butler

as Elvis Presley in Ramis

Score: +1

Ben Whishaw

as Bill Murray in Ramis

Score: +1

Tobey Maguire

as Dan Aykroyd in Ramis

Score: +1

Leonardo DiCaprio

as Ivan Reitman in Ramis

Score: +1

Max Steiner

as Composer in Stripes (1941)

Score: +1

Harold Ramis

as Brick in Total Drama

Score: +2

Harold Ramis

as Sam in Total Drama

Score: +1

Harold Ramis after being revived by scientists

as Sam in Total Drama

Score: +1

John Ford

as Director in Stripes (1941)

Score: +1

John Huston

as Director in Stripes (1941)

Score: +1

Michael Curtiz

as Director in Stripes (1941)

Score: +2

Humphrey Bogart

as Russell Ziskey in Stripes (1941)

Score: 0

Harold Ramis

as Producer in Casablanca (1985)

Score: +1

Tobey Maguire

as Eugene Visitor in GHOSTBUSTERS: The Spiritual Chronicles (NETFLIX SERIES)

Score: +1

Austin Butler

as Hit Cat in The Aristocats (Live Action)

Score: +2

Humphrey Bogart

as J. Thomas O'Malley in The Aristocats (Live Action)

Score: 0

Harold Ramis

as Duchess in The Aristocats (Live Action)

Score: -3

Pierce Brosnan

as Erik Strayton in The Real Ghostbusters (Live-Action) (1986-1991)

Score: +1