Suggestions by @samuelturner

Amy Johnston

as Dinah Lance/Black Canary in Green Arrow & Black Canary

Score: +1

Glen Powell

as Oliver Queen/Queen arrow in Green Arrow & Black Canary

Score: +1

Griffin Gluck

as Jimmy Olsen in Superman

Score: +1

Grace Van Patten

as Chloe Sullivan in Superman

Score: +1

A.J. Saudin

as Lex Luthor in Superman

Score: +1

Eiza González

as Lois Lane in Superman

Score: +1

Eli Goree

as Clark Kent/Superman in Superman

Score: +1

Nicholas Hoult

as Man-Bat in Batman

Score: +1

Jake Gyllenhaal

as Jim Gordon in Batman

Score: +1

Taron Egerton

as Bruce Wayne/Batman in Batman

Score: +1

Simay Barlas

as Talia in Batman

Score: +1

William Shewfelt

as Bruce Wayne/Batman in Batman

Score: +1

John Stamos

as Ezra Fritz in Pretty Little Liars (1980s)

Score: +1

Jared Padalecki

as Detective Eric Stephens in Haddonwood Lake

Score: +1

Jensen Ackles

as Detective Eric Stephens in Haddonwood Lake

Score: +1

Finn Wolfhard

as Zachary Winston in Haddonwood Lake

Score: +1

Lizzy Greene

as Whitney Harris in Haddonwood Lake

Score: +1

Jenna Ortega

as Casey Fray in Haddonwood Lake

Score: +1

Stephen Amell

as Salem Hope in Haddonwood Lake

Score: +1

Dan Stevens

as Salem Hope in Haddonwood Lake

Score: +1