Getting a comment creator's name through webservice

[Guido1982]

I know normally we don't have access to a user's name (other than the current user) through webservice, but I ran into a problem here. I want to display salesorders and the comments made on them. I can do this, but I can't get the creator's name (only the ID). Permission is denied to get the creator's first and last name, but I'd still like to show it. Is there a way to do this?