Lencastre was born in Lisbon. She left the Course of Philosophy at the Faculty of Arts of Lisbon to join the Lisbon Theatre and Film School (Escola Superior de Teatro e Cinema), where he graduated in Theatre (Actors Training) (1986). Win projection when working with Jorge Listopad the play Frei Luís de Sousa, Almeida Garrett (Actress Award Revelation, by APCT, 1986). Since then collaborated with other directors such as Mario Feliciano, Orlando Neves, Carlos Avilez, Gaston Cruz, José Wallenstein, Rogério de Carvalho and John Lawrence, who directed her in his last theatrical experience, Fernando Krapp wrote me this letter from Dorst Tanked (1997). She became one of the most popular actresses on Portuguese television. She began to appear in the Portuguese version of the children's television series Sesame Street (1990), then she moved on to novels and series such as The People's Banker (1993), Cabaret (1994), Dear Teacher (2000), Rage to Live (2002), Hannah and the Seven (2003) (Golden Globe for Best Actress for TV, 2003), or more recently, Time to Live (2006) and Nobody else Tu (2005), where their presence earned high levels of audiences. Also for television, presented some programs, such as the controversial In Bed With ... (1993). In the film stood out in the feature films of Fernando Lopes, The Dolphin (2002) (Golden Globe for Best Film Actress) and Out There (2004), which paired with Rogério Samora. Also starred in The Woman Who Believed U.S. President (2003), John Botelho. It was directed by other filmmakers, such as Teresa Villaverde, João Mário Grilo, António Pedro Vasconcelos, Joao Cesar Monteiro, John Canijo Leonel Vieira and Manuel Mozos. Daughter of Theodosius Gouveia Jacinto Pedrosa, Coimbra, military, and his wife Maria Pestana de Adalgisa Alencastre Telo, Madeira, has an older brother of Pedro de Alencastre Telo Teodósio Pedrosa, born in 1964. She was married to actor Virgílio Castelo and the Dutch television producer Piet-Hein Bakker, between January 18, 1996 and 2003, the last marriage two children: Margaret (10 October 1996) and Catherine (1998). Another curiosity is that it's half-sister of journalist Ana Paula Ribeiro (born 1965 daughter of his father's relationship with Maria Idalina Ribeiro) and second cousin of the writer Inês Pedrosa. In 2007, The Biography Channel dedicated to Alexandra Lencastre a biographical documentary, aired in April of that year.