1. Conrad Veidt (The Man Who Laughs, film, 1928 - inspiration for The Joker)
2. Cesar Romero (Batman, TV series, 1966-1968)
3. Jack Nicholson (Batman, film, 1989)
4. Mark Hamill (Batman: The Animated Series, Batman: Mask Of The Phantasm, Batman Beyond: Return Of The Joker, Birds Of Prey, Batman: Arkham Asylum/Arkham City 1992-2010)
5. Curtis Armstong (Batman OnStar Commercial, 2000)
6. Roger Stoneburner (Birds Of Prey, TV series, 2002 - voice dubbed by Mark Hamill)
7. Andrew Koenig (Batman: Dead End, short film, 2003)
8. Kevin Michael Richardson (The Batman, cartoon, 2004-2008)
9. Heath Ledger (The Dark Knight, film, 2008)