Suggestions by @spectritus

Rick Astley

as Gilderoy Lockhart in Harry Potter (HBO Max Series)

Score: -6

Hugh Bonneville

as Benjamin Avery in Chesterton

Score: +1

Ella Purnell

as Emma Avery in Chesterton

Score: +1

Freddie Highmore

as George Avery in Chesterton

Score: +1

Emma Thompson

as Lillian Avery (née Chesterton) in Chesterton

Score: +1

Andrew Garfield

as Jack Frost in Jack Frost

Score: +1

Jeff Goldblum

as Dr. Arthur Neuman in The Mask

Score: +1

Robert De Niro

as Arnold Ipkiss in The Mask

Score: +1

Carey Mulligan

as Tina Carlyle in The Mask

Score: +1

Ryan Reynolds

as Stanley Ipkiss / The Mask in The Mask

Score: +1

Diane Kruger

as Dr. Abigail Chase in National Treasure 3

Score: +1

Carrie-Anne Moss

as Jennifer Gates in National Treasure 3

Score: +1

Harvey Keitel

as Agent Peter Sadusky in National Treasure 3

Score: +1

Helen Mirren

as Dr. Emily Appleton-Gates in National Treasure 3

Score: +1

Jon Voight

as Patrick Henry Gates in National Treasure 3

Score: +1

Justin Bartha

as Riley Poole in National Treasure 3

Score: +1

Nicolas Cage

as Benjamin "Ben" Franklin Gates in National Treasure 3

Score: +1

Zoë Wanamaker

as Cassandra in Doctor Who: Revival 20th Anniversary Special

Score: +1

Bryce Dallas Howard

as Jenny in Death of a Salesman

Score: +1

Grant Gustin

as Stanley in Death of a Salesman

Score: +1