Suggestions by @jamesharrison

Zac Efron

as John Finlay in Tiger King: Murder, Mayhem and Madness

+2-1Score: +1

Steve Buscemi

as Rick Kirkham in Tiger King: Murder, Mayhem and Madness

+2-1Score: +1

Lisa Kudrow

as Carole Baskin in Tiger King: Murder, Mayhem and Madness

+24-2Score: +22

Jonah Hill

as Jimmy De Santa in GTA 5

+3-3Score: 0

Michael Madsen

as Michael in GTA 5

+3-5Score: -2

Aisling Bea

as Molly O'Shea in Red Dead Redemption 2

+5-6Score: -1