Mariano Peña is a Spanish actor recognized for his extensive work in television, film, and voice acting for Spanish-language dubs. Born in Huelva, Andalucía, he studied dramatic art and fine arts in Seville, which laid the foundation for his career in both stage acting and voice acting. He is widely known for his portrayal of Mauricio Colmenero in the long-running Spanish television comedy series Aída, a role that brought him significant public recognition.

In the realm of anime voice acting, Peña is credited with providing the Spanish voice for the character Bagheera the panther in the Japanese anime series Jungle Book: Shōnen Mowgli. This role represents a notable entry in his voice acting filmography. While he is primarily celebrated for his on-screen performances in Spanish television and film, his work as a voice actor, including his contribution to this classic anime series, forms a part of his diverse professional background.