Suggestions by @duel79

Hugo Weaving

as Alfa in DCU Cyborg

Alisha Wainwright

as Sarah Charles in DCU Cyborg

Phylicia Rashād

as Elinore Stone in DCU Cyborg

Dennis Haysbert

as Silas Stone in DCU Cyborg

Damson Idris

as Cyborg in DCU Cyborg

Dennis Haysbert

as "S.T.A.R. Labs" in DCU Aquaman

Spoiler

as "S.T.A.R. Labs" in DCU Aquaman

Mike Colter

as Black Manta in DCU Aquaman

Alex Pettyfer

as Ocean Master in DCU Aquaman

Uma Thurman

as Atlanna in DCU Aquaman

Mel Gibson

as Thomas Curry in DCU Aquaman

Eleanor Tomlinson

as Mera in DCU Aquaman

Kellan Lutz

as Aquaman in DCU Aquaman

Aramis Knight

as Nightwing in DCU The Flash

Kellan Lutz

as "Man from the Sea" in DCU The Flash

Spoiler

as "Man from the Sea" in DCU The Flash

Hank Azaria

as Abra Kadabra in DCU The Flash

Jodie Foster

as Joan Garrick in DCU The Flash

Tom Hanks

as Jay Garrick in DCU The Flash

Michael C. Hall

as Zoom in DCU The Flash