Antonio

Conrad's grandson, introduced as a young boy at the beginning of the series. He participates in the Red Whirlwind's heroic acts as a sidekick and helper, and works in William's theater. He is one of the few living with Juliet that did not know her identity or gender until it is revealed to him on her 16th birthday. His arsenal of choice revolves around trickery including various bombs and firecrackers. After the formation of the new Capulet faction, Antonio works as a spy and helps Curio and Francisco rescue Juliet when she is captured by Montague. He has a crush on Regan. At the end of the series, he is shown as a young adult, assured that Juliet wanted everyone to be happy.

(Souce: Wikipedia)