Suggestions by @bighero616

Josh Segarra

as Wildcat in Hawkman

Jack Quaid

as Atom in Hawkman

David Castañeda

as Sandman in Hawkman

Jay Ryan

as Hourman in Hawkman

Christian Bale

as Vandal Savage in Hawkman

Spoiler

as And that's what happened. in Hawkman

Spoiler

as Finish the job. in Hawkman

The Top (DC)

as Suits/Costumes in Flash: First Race

Weather Wizard (DC Comics)

as Suits/Costumes in Flash: First Race

Mirror Master

as Suits/Costumes in Flash: First Race

Heat Wave

as Suits/Costumes in Flash: First Race

Captain Cold

as Suits/Costumes in Flash: First Race

The Flash (Barry Allen)

as Suits/Costumes in Flash: First Race

Chris Evans

as Flash/Barry Allen in Flash: First Race

Emma Stone

as Iris West in Flash: First Race

Andrew Lincoln

as Captain Cold in Flash: First Race

Daniel Kaluuya

as Mirrror Master in Flash: First Race

Jon Bernthal

as Heat Wave in Flash: First Race

Rodrigo Santoro

as Weather Wizard in Flash: First Race

Matthew Lewis

as Top in Flash: First Race