Suggestions by @candyman

Winston Duke

as Demoman in Team Fortress 2: The Last Contract

Score: 0

Nathan Mitchell

as Demoman in Team Fortress 2: The Last Contract

Score: -2

Jon Hamm

as Medic in Team Fortress 2: The Last Contract

Score: +1

Mike Estes

as Medic in Team Fortress 2: The Last Contract

Score: -1

Woody Harrelson

as Engineer in Team Fortress 2: The Last Contract

Score: +1

Sharlto Copley

as Sniper in Team Fortress 2: The Last Contract

Score: +1

Omari Hardwick

as Demoman in Team Fortress 2: The Last Contract

Score: -2

John Cena

as Soldier in Team Fortress 2: The Last Contract

Score: +1

Lucas Hedges

as Scout in Team Fortress 2: The Last Contract

Score: +1

Mark Strong

as Spy in Team Fortress 2: The Last Contract

Score: +1

Hugh Laughton-Scott

as Ron Weasley in The Eyes of the Phoenix

Score: +1

Henry Cavill

as Godric Gryffindor in The Eyes of the Phoenix

Score: +1

Maude Hirst

as Luna Lovegood in The Eyes of the Phoenix

Score: +1

Luca Hollestelle

as Ginny Weasley in The Eyes of the Phoenix

Score: +2

Lucas Jade Zumann

as Harry Potter in The Eyes of the Phoenix

Score: +1

Luke Evans

as Salazar Slytherin in The Eyes of the Phoenix

Score: +1

Clive Standen

as Godric Gryffindor in The Eyes of the Phoenix

Score: -1