professor at Escolarium. Her best friend is Mecha, while she is in love with Daniel. During the second season, Grachi gets a new enemy named Mía, a witch who is determined to steal Daniel's love from her. At the end of the second season, Grachi's powers get stronger, enough to defeat Mía. During the third season, she has a new love interest who is also her enemy, Axel. Andrés Mercado as Daniel Esquivel – The leader of the swimming team "The Sharks" at Escolarium. He's Chema's cousin and best friend. Daniel's parents are Cristina and Ricardo, and he has three siblings: Melanie, Luis and Roberto. He's introduced as Matilda's boyfriend and the most popular boy in the school, who every girl wants to be with. He and Grachi start a relationship during the first season's last episodes. In season two, he and Leo become enemies, because both want to be with Grachi. During the third season, Daniel befriends Leo, as he faces a new enemy, Axel. Kimberly Dos Ramos as Matilda Román (Seasons 1–2) – She's the main antagonist of the first season and was the most popular girl at Escolarium before Grachi's arrival. She is also a witch but uses her powers to do bad. She is the leader of the "Red Panthers", a group of girls who dance and respond to all of Matilda's manipulations. Matilda is Daniel's ex-girlfriend, and she is determined to win his love back and destroy Grachi. During the second season, she began dating a new guy named Diego. She and Grachi developed a slight friendship during the season and became stepsisters at the end due to Ursula and Francisco's wedding. Matilda doesn't return for the third season. Rafael de la Fuente as Diego Forlán – Part of "The Sharks", Matilda's boyfriend in season two and a Kanay, a person who can manipulate the four elements. He was a minor character during the first season and got a prominent role during the following ones. In the third season, he falls in love with Axel's sister, Amaya, and she becomes his girlfriend at the end of the third season. Mauricio Henao as Antonio "Tony" Gordillo – A highly intelligent and nerdy boy who falls in love with Grachi, but his affections aren't reciprocated. He joins the swimming team "The Sharks". At the end of the first season, Tony wins a scholarship to study at a