Batman's nemesis, The Joker, has changed a lot over the years along with the Dark Knight. Here's a gallery showing just how much the villain has changed. He's went from comical to scary, to nightmare level. Check it out:

1940 – Bob Kane/Jerry Robinson – “Batman” #1

1940 – Bob Kane/Jerry Robinson – “Batman” #1

1966 – Cesar Romero – “Batman” TV Series

1977 – Neal Adams/Dick Giordano – “Batman” #251

1986 – Frank Miller/Klaus Janson – “The Dark Knight Returns

1988 – Brian Bolland – “The Killing Joke” Graphic Novel

1989 – Jack Nicholson – Tim Burton’s “Batman”

1989 – Dave McKean – “Arkham Asylum” Graphic Novel

1992 – Bruce Timm – “Batman: The Animated Series”

1996 – Tim Sale – “Batman: The Long Halloween” #3

1997 – Bruce Timm – “The New Batman Adventures”

2003 – Jim Lee/Scott Williams – “Batman” #613

2003 Michael Lark – “Gotham Central” #13

2004 – Jeff Matsuda – “The Batman” animated series

2007 – John Van Fleet – “Batman” #663

2008 – Heath Ledger – Christopher Nolan’s “The Dark Knight”

2008 – Lee Bermejo – “Joker” graphic novel

2012 – Greg Capullo/Jonathan Glapion – “Batman” #13

2014 – Greg Capullo/Danny Miki – “Batman” #36

2016 – Jared Leto – David Ayer’s “Suicide Squad”