By this logic we should have a Carly page as well since she was mentioned in the pilot. Cat's brother should probably be deleted as well to be honest. A look at that article and the deleted version of Pam Puckett shows most of the stuff is from iCarly and Victorious. Take all that out and we have close to no info on either character. The bottom line is we didn't learn much about these characters in S&C, as much as we would have liked to. Any new info could probably go on the Sam, Cat, or the episode articles. We could always use interwiki links, and honestly I think that would be the better option to make it clear these are characters from previous shows and most of what we know about them came from those shows.
A compromise solution could be to create a page to put all the characters into one page. But like I said interwiki links would be our best bet.