Suggestions by @davidaustinthompson

Ghassan Massoud

as Ra's al Ghul in James Gunn's Batman Trilogy

Ghassan Massoud

as R'as Al Ghul in James Gunn's Batman Trilogy

Samara Weaving

as Dr. Harleen Quinzel in James Gunn's Batman Trilogy

Oscar Isaac

as Harvey Dent in James Gunn's Batman Trilogy

Dacre Montgomery

as Jason Todd in James Gunn's Batman Trilogy

Jason Statham

as Roman Sionis in James Gunn's Batman Trilogy

Eddie Redmayne

as Edward Nygma in James Gunn's Batman Trilogy

Adrien Brody

as Dr. Kirk Langstrom in James Gunn's Batman Trilogy

Giancarlo Esposito

as Dr. Victor Fries in James Gunn's Batman Trilogy

Denzel Washington

as Lucius Fox in James Gunn's Batman Trilogy

Noah Schnapp

as Tim Drake in James Gunn's Batman Trilogy

Katherine McNamara

as Katherine 'Kate' Kane in James Gunn's Batman Trilogy

Bryce Dallas Howard

as Martha Wayne in James Gunn's Batman Trilogy

Jon Hamm

as Thomas Wayne in James Gunn's Batman Trilogy

Ralph Fiennes

as Alfred Pennyworth in James Gunn's Batman Trilogy

Johnny Depp

as Carmine Falcone in James Gunn's Batman Trilogy

Adam Driver

as Dr. Jonathan Crane in James Gunn's Batman Trilogy

Daniel Radcliffe

as Joker in James Gunn's Batman Trilogy

Daisy Ridley

as Selina Kyle in James Gunn's Batman Trilogy

Robert Downey Jr.

as James Gordon in James Gunn's Batman Trilogy