how much do celebs get paid for appearing on talk shows?

Answer 1

Screen Actors' Guild union scale (the bare minimum paid to actors for movie and TV roles;when I last checked it was roughly $745).

Answer 2

I doubt they get paid anything because about the only time they go on talk shows is when they have a new movie/book/money making scheme and they want the publicity for it. The only people who might get paid are the ones who have 15 minutes of fame because they are associated with something that is in the news at the moment.

Answer 3

$600 for David Letterman