Suggestions by @alecroc

Mary Elizabeth Winstead

as Zatanna (2007) in My idea DC Nolanverse/Singerverse

Score: +1

Ryan Reynolds

as Green Lantern (2011) in My idea DC Nolanverse/Singerverse

Score: +1

Brandon Routh

as Batman/Superman: The World's Finest (2010) in My idea DC Nolanverse/Singerverse

Score: +1

Christian Bale

as Batman/Superman: The World's Finest (2010) in My idea DC Nolanverse/Singerverse

Score: +2

Cillian Murphy

as Batman Begins (2005) in My idea DC Nolanverse/Singerverse

Score: +1

Liam Neeson

as Batman Begins (2005) in My idea DC Nolanverse/Singerverse

Score: +1

James Marsden

as X2: X-Men United (2003) in Marvel Cinematic Universe (2000's) TAKE 2

Score: +1

Adrianne Palicki

as Wonder Woman (2011) in My idea DC Nolanverse/Singerverse

Score: +1

Brandon Routh

as Superman Returns (2006) in My idea DC Nolanverse/Singerverse

Score: +2

Christian Bale

as Batman Begins (2005) in My idea DC Nolanverse/Singerverse

Score: +4

Keanu Reeves

as Constantine (2005) in My idea DC Nolanverse/Singerverse

Score: 0

Denzel Washington

as Green Lantern II in Donnerverse DC Comics

Score: +6

Brenton Thwaites

as Peter Parker in Marvel's Spider-Man (2018)

Score: +1

Ryan Reynolds

as Hal Jordan (DCU Earth-2005) in Justice League/Avengers: Multiverse War

Score: +1

Tom Welling

as Cameos in Siegel & Shuster: Creators of a hero.

Score: +1

Richard Madden

as Jake Sully in Avatar (2019)

Score: 0

Dillon/Black RPM Ranger

as Post-Traumatic Stress Disorder in Diagnosing Fictional Characters (My version)

Score: +1

Eleven

as Post-Traumatic Stress Disorder in Diagnosing Fictional Characters (My version)

Score: +2

John Kreese

as PTSD in Diagnosing Fictional Characters (Spooky's Version)

Score: +1

Malcolm Wilkerson

as Autism in Diagnosing Fictional Characters (Spooky's Version)

Score: +1