Helena Caldeira, born in Alentejo, Portugal, where she began her training. She graduated in Theatre/Acting from the Escola Superior de Teatro e Cinema (Lisbon) in 2018 and completed an internship at the National Theater D. Maria II, where she worked with the acclaimed Portuguese director Tiago Rodrigues, as well as with Ricardo Neves-Neves, Álvaro Correia, and Maria João Luis. Since then, she has been active in theatre, collaborating with Marta Dias, Rui Neto, Elmano Sancho, André Uerba, João Borralho, and Ana Galante.
Co-founder of the Artistic Association Bestiário, where she develops her career as both an actress and creator.

Helena is part of the project that brings Gus Van Sant to his theatre debut, TROUBLE, a musical about the life and work of Andy Warhol, where she plays Edie Sedgwick were her performance was recognized by The New York Times (2021).

As lead in the Netflix series Turn of the Tide that she solidified her recognition, earning a nomination for Best Actress at the Globos de Ouro (PT).
Helena was nominated for Best Supporting Actress at the Sophia Awards by the Portuguese Film Academy for her role in the film Revolução sem Sangue.