Suggestions by @thebatman7424

Bruce Campbell

as Grandpa Max Tennyson in Ben 10

Score: +10

Joe Keery

as Johnny 13 in Danny Phantom live action reboot

Score: +1

Vanessa Kirby

as Gilda Dent in Batman

Score: +1

Jackie Earle Haley

as Dr. Kirk Langstrom in Batman

Score: +1

Anthony Carrigan

as Victor Zsasz in Batman

Score: +2

Tómas Lemarquis

as Victor Zsasz in Batman

Score: +1

John Glover

as Dr. Kirk Langstrom in Batman

Score: +2

Kelly Hu

as Selina Kyle in Batman

Score: -1

Michael McKean

as Salvatore Maroni in Batman

Score: +1

Robert De Niro

as Carmine Falcone in Batman

Score: +1

Felicity Jones

as Lois Lane in Batman

Score: +1

Michael Shannon

as Mario Falcone in Batman

Score: +1

Rosemary Harris

as Aunt Harriet in Batman

Score: +1

Crispin Glover

as Jonathan Crane in Batman

Score: -1

Idris Elba

as Hephaestus in Percy Jackson & the Olympians

Score: 0

Denzel Washington

as Hephaestus in Percy Jackson & the Olympians

Score: 0

Chloë Grace Moretz

as Stephanie Brown in Batman

Score: +1

John Boyega

as Victor Stone/Cyborg in Teen Titans

Score: +1

Abigail Cowen

as Kory Ander/Starfire in Teen Titans

Score: +1

Karl Urban

as Bruce Wayne/Batman in Teen Titans

Score: +1