Suggestions by @murphyslaw

Ewan McGregor

as Jeremiah Arkham in Batman: Battle for the Cowl

Kristen Stewart

as Katherine Kane in Batman: Battle for the Cowl

Taron Egerton

as Jason Todd in Batman: Battle for the Cowl

David Mazouz

as Damian Wayne in Batman: Battle for the Cowl

Taron Egerton

as Red Hood in DCEU

Zachary Levi

as Shazam in DCEU

Willem Dafoe

as Joker in DCEU

Warden Wayne

as Spider-Man in Alternate MCU

James Franco

as Black Mask in The Batman Rogues

Ghassan Massoud

as Ra's al Ghul in The Batman Rogues

Oded Fehr

as Ra's al Ghul in The Batman Rogues

Hiroyuki Sanada

as Ra's al Ghul in The Batman Rogues

Navid Negahban

as Ra's al Ghul in The Batman Rogues

Simon Pegg

as Mad Hatter in The Batman Rogues

Bill Skarsgård

as Mad Hatter in The Batman Rogues

Mark Hamill

as Mad Hatter in The Batman Rogues

Michael Sheen

as Mad Hatter in The Batman Rogues

Jon Hamm

as Two-Face in The Batman Rogues

Mark Strong

as Mr. Freeze in The Batman Rogues

James McAvoy

as Victor Zsasz in The Batman Rogues