Suggestions by @ddawg

Ross Marquand

as Akarl in The Minorverse

Hugo Weaving

as Trigon in The Minorverse

David Tennant

as Clayface in The Minorverse

Alexis Denisof

as Psimon in The Minorverse

Nathan Fillion

as Mayor Linseed in The Minorverse

Alicia Vikander

as Nora Freeze in The Minorverse

Chiwetel Ejiofor

as Firestorm in The Minorverse

Ansel Elgort

as Firestorm in The Minorverse

Millie Bobby Brown

as Alianna in The Minorverse

Carla Gugino

as Ra's al Ghul in The Minorverse

Winston Duke

as Solomon Grundy in The Minorverse

Jamie Foxx

as Weather Wizard in The Minorverse

Tom Cavanagh

as Reverse Flash in The Minorverse

Jeffrey Combs

as Brainiac in The Minorverse

Dane DeHaan

as Klarion in The Minorverse

Ezra Miller

as The Flash in The Minorverse

Michael Rowe

as Professor Pyg in The Minorverse

Charlie Cox

as Andrew Benett in The Minorverse

Cameron Monaghan

as Mirror Master in The Minorverse

Peter Dinklage

as Darwin in The Minorverse