Juliet
The first character to mention the idea of marriage in "Romeo and Juliet" is Lady Capulet, who discusses the prospect of Juliet marrying Paris with her daughter.
Juliet was the first one to mention marriage during the balcony scene.
juliet
Romeo
In Act III, Scene 1, Mercutio was the first one to mention fighting. Eventually, Tybalt stabs Mercutio.
The first mention of fighting in "Romeo and Juliet" is in the opening scene when servants from the Montague and Capulet households engage in a physical brawl in the streets of Verona. This sets the stage for the ongoing feud between the two families that drives much of the conflict in the play.
It is Romeo's friend Mercutio, killed by Juliet's cousin, Tybalt.
Paris asks Juliet's father for permission to marry Juliet. Romeo asked Juliet instead. (Actually she offered before he asked)
The Nurse is the member of the Capulet household who is aware of Juliet's pending marriage to Romeo and is assisting with the arrangements. She acts as a messenger between Romeo and Juliet and helps facilitate their secret relationship.
The first character to die in Romeo and Juliet is Mercutio, who is killed in a fight with Tybalt. This leads to a chain of tragic events in the play.
The character of Capulet comes across in the first scene because it was when Romeo realized that Juliet was a Capulet.
In Shakespeare's play "Romeo and Juliet," Juliet expresses some reservations about marriage at first, but eventually agrees to consider a potential match with Paris.
Juliet's Nurse knows about the marriage. She brings Juliet the message of when and where it will be, and later brings a rope ladder so that Romeo can climb to Juliet's balcony so that the lovers can spend their first night together. Juliet's Nurse is the only other person that knows about Juliet's marriage. The nurse the person that brings the letter that Romeo sends to Juliet.