Suggestions by @aaronsamuels

Brandon Routh

as Atom I in DC(E)U

Score: +1

Paul Bettany

as Brainiac in DC(E)U

Score: +1

Tom Cavanagh

as Reverse Flash in DC(E)U

Score: +2

Kaley Cuoco

as Harley Quinn in DC(E)U

Score: +2

Arleen Sorkin

as Harley Quinn in DC(E)U

Score: +1

Margot Robbie

as Harley Quinn in DC(E)U

Score: +1

Falk Hentschel

as Hawkman in DC(E)U

Score: -1

Aldis Hodge

as Hawkman in DC(E)U

Score: +1

Taron Egerton

as Red Hood in DC(E)U

Score: +1

Logan Lerman

as Red Robin/Drake in DC(E)U

Score: -1

Ansel Elgort

as Red Robin/Drake in DC(E)U

Score: +1

Jay Lycurgo

as Red Robin/Drake in DC(E)U

Score: -1

Curran Walters

as Red Hood in DC(E)U

Score: -1

Jensen Ackles

as Red Hood in DC(E)U

Score: -1

Chris O'Donnell

as Nightwing in DC(E)U

Score: -1

Burt Ward

as Nightwing in DC(E)U

Score: +1

Scott Menville

as Nightwing in DC(E)U

Score: +1

Loren Lester

as Nightwing in DC(E)U

Score: +1

Aidan Gallagher

as Robin IV in DC(E)U

Score: +1

Zach Galifianakis

as Joker in DC(E)U

Score: -1