Onahoua Rodriguez grew up in New York and received her training from the American Musical and Dramatic Academy. She was cast in New York to play The Bride in Blood Wedding at the La Jolla Playhouse, and eventually relocated to Los Angeles.
Since then, she has guest starred and recurred on various TV shows including CSI: Crime Scene Investigation, Saving Grace, ER, NYPD Blue, Cold Case, CSI Miami, Boston Public, Cover Me, The Allison Anders pilot In The Echo and is best known for playing Emolia Melendez on The Shield and Maria "Mermex" on the current season of Weeds. She played Wanda Love in Rhythm Of The Saints (Dramatic Film Category at the 2003 Sundance Film Festival).
She continues to do theater which includes Nilo Cruz's Pulitzer Prize winning play Anna In The Tropics at South Coast Rep., The Coconut Grove Playhouse and at The Skirball Center. She also starred in the world premiere of Cruz's Beauty Of The Father at the Seattle Rep.
Onahoua recently starred in the world premiere of Octavio Solis' Lydia at The Denver Center for the Performing Arts and will reprise the role in 2009 at the Yale Repertory Theater and at the Mark Taper Forum in Los Angeles.