Answer: Romeo and Paris are also foils.
Explanation:
As opposed to Romeo, Paris is an approved suitor in the eyes of the Capulet family. Paris is a character that goes to Lord Capulet and openly discusses the idea of marriage to his daughter. He is older, has certain manners, and, most importantly, respects the family and speaks to the father before planning the future with his daughter. He is a dignified version of Romeo.
Romeo, on the other hand, does not speak to Lord Capulet. To make it even worse, he has to plot behind his back with his daughter, as their families hate each other.