And quite what's so ugly about it? It's hackish, but once you create these overloads, you don't need to worry about it anymore and you can call the method just as if Func<T> could be casted to Action. I don't think it can even be compared to the one suggested in the article, since it does not require "creating a separate overload with an identical implementation" (!!!), potentially copy-pasting hundreds of lines of code if the method in question was indeed "more complicated". This is ridiculous and the fact the author couldn't think of a workaround that didn't involve it baffles me.