OK, I normally try to leave this open for other people's comments rather than doing all the talking myself, but I'll go ahead on this one.  I hope we have some folks reading Celestina who will want to join in the conversation.

I found the characters to be more two- than three-dimensional -- it's a pretty short novel, and while there's a lot of action I didn't get that much sense of deep character development.  That's not necessarily a bad aspect, since I think the author wasn't trying to write a deep analysis but to point up the "each man for himself" nature he saw in society.  That definitely comes across!  There is a pretty clear sense of the social class of the various characters, whether master or servant.

I would say the character I found most poignant was Melibea's father.  The final scene where he learns of his daughter's death touched me.

-- Kathy Gursky