Suggestions by @prithvirajbasu

Rhys Ifans

as Bootstrap Bill Turner in Pirates of the Caribbean trilogy (2013-2017)

Score: +6

Remus Lupin

as Mycroft Holmes in Sherlock Holmes (with Harry Potter characters)

Score: +1

Severus Snape

as Inspector Lestrade in Sherlock Holmes (with Harry Potter characters)

Score: +1

Willem Dafoe

as Father Brennan in The First Omen (2014)

Score: +1

Halle Berry

as Tia Dalma in The Pirates of the Caribbean Trilogy (1993-1997)

Score: +3

Mark Strong

as James Norrington in The Pirates of the Caribbean Trilogy (1993-1997)

Score: +2

Ron Moody

as Captain Hector Barbossa in The Pirates of the Caribbean Trilogy (1993-1997)

Score: +3

Geoffrey Rush

as Bowler Hat Guy in Meet the Robinsons (2027)

Score: 0

Willem Dafoe

as Bowler Hat Guy in Meet The Robinsons

Score: 0

Jeremy Irons

as Petyr Baelish in Game of Thrones Reboot

Score: +1

Tom Hiddleston

as Petyr Baelish in Game of Thrones Reboot

Score: +1

Tom Hollander

as Petyr Baelish in Game of Thrones Reboot

Score: +1

Bill Nighy

as Ra's Al Ghul in Future Batman Project

Score: +1

Ryan Gosling

as Bruce Wayne / Batman in Future Batman Project

Score: +1

Bill Nighy

as Lord Voldemort in Harry Potter

Score: -1

Bill Nighy

as Count Vlad Dracula in Dracula

Score: +1

Geoffrey Rush

as Albus Dumbledore (Portrayal by Gary Oldman) in Harry Potter

Score: -4

Andrew Scott

as Lord Voldemort in Harry Potter

Score: -1

Andrew Scott

as Quirinus Quirrel in Harry Potter

Score: -1

Mark Strong

as Severus Snape in Harry Potter

Score: -3