Other actors considered for Batman:
Batman 1989 - Michael Keaton
Mel Gibson
Kevin Costner
Charlie Sheen
Patrick Swayze
Pierce Brosnan
Tom Selleck
Bill Murray
Willem Dafoe
Dennis Quaid
Daniel Day-Lewis
Alec Baldwin
Jeff Bridges
Kevin Kline
Liam Neeson
Harrison Ford
Chevy Chase
Richard Gere
Steve Martin
Alec Baldwin was offered the role originally and turned it down. Bill Murray came very close to playing Batman before they decided on Keaton
Batman Forever 1995 - Val Kilmer
Johnny Depp
Ethan Hawke
William Baldwin
Dean Cain
Tom Hanks
Tom Cruise
Dennis Quaid
Kurt Russell
John Travolta
Ralph Fiennes
Kevin Bacon 1995
Batman and Robin 1997 - George Clooney
David Duchovny
Matt LeBlanc
Batman Triumphant - Abandoned
Thank God this movie never saw the light of day. It would have been a sequel to Batman and Robin with George Clooney and Chris O'Donnell returning. Nicolas Cage, Coolio, and Jeff Goldblum were all considered for the scarecrow. Courtney Love and Madonna were considered for Harley Quinn. The story would have had Quinn turn out to be the Jokers daughter. She with the help of Scarecrow seeks revenge. Jack Nicholson, Danny Devito, Tommy Lee Jones, and Jim Carey would have returned as their villain characters via hallucination due to the scarecrow.
Batman Year One - Abandoned
Clint Eastwood
Batman Begins - Trilogy 2005 - Christian Bale
Jake Gyllenhaal
Joshua Jackson
Armie Hammer
Cillian Murphy - Who was cast as Scarecorw
Heath Ledger
Eion Bailey
David Boreanaz
Batman VS Superman/Justice League - Ben Affleck
Josh Brolin
Collin Farrell
Jake Gyllenhaal
Luke Evans
Richard Armitage
Armie Hammer
Wes Bentley
Marlon Wayans was offered the role of Robin in Batman Returns, but the role was cut
Leonardo Dicaprio was considered for the role of Robin in Batman Forever, but he turned it down, he was also considered for Batman, Joker, and Riddler (who was the original villain of The Dark Knight Rises, before the script was rewritten and Bane was used instead) in Christopher Nolan's trilogy.