Originally from Spain, Marián began her acting career at the age of fifteen working for the theatre company La Ventanita. Her professional debut with the group was in 1993 with the play Talk To Me Like The Rain by Tennesse Williams. In 1997 she graduated from The Drama School of Valladolid after which she toured Spain with Life is a Dream by Calderón de la Barca. She also worked in Italy performing in the Elias Canetti play Vite a Scadenza directed by the Artistic Director of The Piccolo Theatre, Milan; Franco Brambilla. This production was designed by the acclaimed scenographer, Josev Sboboda. In 1998 she moved to Ireland where she took a three- year performance course at The Liberties College (Dublin.) When she finished Marián started to work for various Irish theatre companies including: Randolf SD/ the company with their production Eeugh!topia for the 2003 Dublin Fringe Festival and the 2004 Irish premiere of The Drowned World by Gary Owen in which she played Tara. She also performed in The Balcony by Jean Genet (Andrews Lane) playing Chantal and ‘The Horse Girl’ and played the title role in AistearTheatre Company’s production of Angelene by Pearse Lehane (The Crypt Arts Centre).
Since 2002 her work has been concentrated within nervousystem, where she has been exploring the language of theatre through the company's deep research on actor's training and composition. Within the company Marián has developed a detailed and comprehensive actor-training program that it is been shared with actors from Ireland and abroad. This daily training has been of key importance to her evolving working practice and performative structures as well as on her own progression as an actor. With nervousystem Marián has performed in Fire Face, The Cuchulain Plays by W.B. Yeats; and has created and performed individual scores for Aversion, an original work composed by the company; Aversion the Eye I, a reworking on Aversion and Park/Malta Action, the culmination of a year long project on Theatre Haiku. Currently Marián is continuing her exploration into the actor’s craft and the nature of performance through the creation of a solo piece called The Myth and The Flesh. Through her practice within the domain of actor as a writer, she intends to keep questioning and challenging what actors do in order to keep the art of performance alive.
In November 2005 Marián was invited to participate in a month long Worksession led by The Workcenter of Jerry Grotowski and Thomas Richards in Moscow as part of their project Tracing Roads Across. In May 2006 she went to Italy to work again with Gey Pin Ang, one of the members of the ensemble, establishing a working relationship with her and other european theatre practitioners.
Her credits in film include the Irish feature films Dead Meat where she played the lead character (Horrorthon Productions); Three Crosses playing the female lead (October 11 productions) and Thomas Cosgrove’s Dead of Night. She also played in the Mexican film In Love. In Television, Marián has appeared in the RTE’s drama series: Proof, Fair City, The Clinic and in the comedy sitcom: The English Class.