Santiago Villalba is a talented young baritone with experience in both opera and musical theater. His vocal maturity and stage presence, combined with his technical prowess and interpretive skills, have consistently impressed audiences.

In 2024, he made his debut at the Theatro Municipal do Rio de Janeiro in Gaetano Donizetti's "L'Elisir d'Amore" as Belcore, receiving widespread acclaim from both audiences and critics.

In 2023, he debuted in Cyro Delvizio's opera "Um Homem Amarelo". That same year, he portrayed Tom Jobim and Miele in "Elis, the Musical", directed by Dennis Carvalho.

In 2019, he appeared in "Merlin and Arthur, A Dream of Freedom", a production staged by Aventura and directed by Guilherme Paes Leme. Additionally, he performed in "Pinocchio", an operetta by Tim Rescala, showcased by the PeQuod Company in Rio de Janeiro and São Paulo.

In 2018, Santiago was featured in the musical "Romeo and Juliet to the tunes of Marisa Monte".

Since 2013, he has been a key member of the cast at the Casa de Arte e Cultura Julieta de Serpa and Teatro Cesgranrio, participating in various musical shows and productions.

He has appeared in university productions such as "Ópera do Malandro", "Young Frankenstein", "A Ratoeira", "Gianni Schicchi", "Sweeney Todd", and "Die Fledermaus", directed by stage directors including Menelick de Carvalho and Rubens Lima Jr.

He continues to refine his vocal and repertoire skills under the guidance of tenor Eduardo Álvares.