My son is getting married next month and a friend of ours would like to host an evening Sheva Brochas. However, he has suggested that some mutual friends (who are not jewish) also attend the dinner. What is the attitude towards non-jews attending a Sheva Brochas?

There is no problem with having non-jews join your Sheva Brochas as long as they don't make one of the Brochas or tuch the wine (yayin Nesech). Mazal Tov. Rabbi Binyamin Bamberger.