Keaton definitely has the pick of the great WA characters, my favourite also has to be that Love & Death one, hilarious. Apart from the many Keaton roles, I did like Michael Caine's shifty adulteror in HAHS. Fave WA character, tho they're all much of a muchness, is as the guy in Bananas who finds himself at the centre of a South American revolution, that's one of my favourite Allen films and is mysteriously under rated.
Christopher Walken - Annie Hall's brother.
Ha, he is terrifying. I guess he started as he meant to go on. 
I used to think he was a fictional character
Alvy Singer from Annie Hall and Harry Block from Deconstructing Harry.
Quote: AndreaLynne @ February 27 2010, 2:06 AM GMTI like everybody in Manhattan Murder Mystery. The main characters crack me up.
Agreed. An excellent film with which to curl up on the sofa with on a rainy afternoon.
My favourite Woody Allen character must be Danny Rose. For me, Allen's best acting performance however comes as Cliff in Crimes And Misdemeanours (which is also his best "serious" film).