Gastón Dalmau Arroquy is an Argentine actor and singer. He is best known for playing Ramiro "Rama" Ordóñez in the Cris Morena television series Casi Ángeles, and as a member of music group Teen Angels. He lives in Los Angeles. From Wikipedia
Julieta Poggio is confirmed for Antonella, with the Patito role open after Albana Fuentes withdrew.