I watched the Joker Movie Teaser trailer and I can say I have seen many adaptations of the Joker during my life time:

I grew up watching Cesar Romero and his makeup covered mustache. 

I have gone through in no particular order: Lennie Weinrib,  Jeff Bennett, Christopher Corey Smith, Jeff Bergman, Larry Storch,  Troy Baker, Michael Emerson,  Richard Epcar, Anthony Ingruber, Kevin Michael Richardson, Zach Galifianakis, John DiMaggio, and last but most certainly not least Mark Hamil play the Joker in animated series and video games. 

Movie wise I have had Heath Leger, Jared Leto, Jack Nicholson, and Cameron Monaghan on TV

So now I have this teaser trailer hitting the scene with yet another attempt by Joaquin Phoenix.