Any good internet discount brokers in the UK, Netherlands, Italy and Sweden?

I don't know what you are asking. Are you asking if there are discount brokers in these countries? Or are you asking if there are discount brokers (in whichever country your reside) who deal with stocks from these countries?

I'm asking about internet discount brokers who deal with stocks from these countries. I already have a U.S. Fidelity account -I opened it when I was a resident in the U.S.- but it doesn't allow me to buy individual stocks that are sold in foreign markets.

Interactive Brokers handles the UK, Netherlands and Sweden, but not Italy. I assume you are aware that the UK has a 0.5% stamp duty that makes stock trading rather expensive.

Thanks. Yes, I know about the stamp duty, that's why I plan to buy some English stocks in the U.S. market -such as Lloyds' or HSBC'-. In the Italian market, I'm only interested in just one stock, so hopefully it won't be very difficult to buy it.

I bought HSBC from my Schwab account.

Yes, I've already bought some interesting undervalued non-US stocks through Fidelity (Tsakos Energy Navigation -TNP- a Greek navigation company which is now my largest holding in my 36-stock portfolio; or KT Corporation -KTC- a Korean telecommunications company), but I would like to expand my portfolio with stocks from those markets that look cheaper to me...