"The Professor" is a fictional character from the popular Spanish television series La Casa de Papel, also known as Money Heist. He is the mastermind behind the heists on the Royal Mint of Spain and the Bank of Spain. His real name is Sergio Marquina, and he is known for his intelligence, strategic planning, and ability to manipulate situations to his advantage. The character is portrayed by actor Álvaro Morte. He is characterized by his calm demeanor, meticulous attention to detail, and deep emotional connections with his team. Throughout the series, "The Professor" faces numerous challenges, showcasing his resilience and resourcefulness in high-pressure situations.