Suggestions by @aaronsamuels

Ryan Reynolds

as Animal Man in DC(E)U

Score: +1

Jim Carrey

as Mister Mxyzptlk in James Gunn's Superman

Score: 0

Paul Bettany

as Brainiac in James Gunn's Superman

Score: 0

Ana de Armas

as Wonder Woman in DC(E)U

Score: +1

Jamie Alexander

as Wonder Woman in DC(E)U

Score: -1

Aiden Gallagher

as Tim Drake in Bat Family, Batman Inc. and Deathstroke Inc.

Score: +2

Patton Oswalt

as Bob Newman in Stranger Things (Recasted)

Score: +1

Dacre Montgomery

as Flash Thompson in The Amazing Spider-Man Duology (2022 - 2024)

Score: -2

Rainn Wilson

as Doctor Doom in Earth-616 Illuminati

Score: 0

Chris Hemsworth

as Arthur Curry in The entire DCEU but your only allowed to pick actors from the mcu

Score: +4

Caity Lotz

as Dinah Lance/Black Canary in DCEU reboot: The Justice League

Score: -2

Timothy Dalton

as Chief in DC(E)U

Score: +1

Patrick Stewart

as Chief in DC(E)U

Score: -1

April Bowlby

as Elasti-Girl in DC(E)U

Score: +1

Matt Bomer

as Negative Man in DC(E)U

Score: +1

Riley Shanahan

as Robotman in DC(E)U

Score: +1

Joel McHale

as Deadman in DC(E)U

Score: +1

Ana de Armas

as Zatanna in DC(E)U

Score: -1

Camilla Luddington

as Zatanna in DC(E)U

Score: -1

Emilia Clarke

as Zatanna in DC(E)U

Score: -1