Mark Margolis (born November 26, 1939) is an American actor. He is known for his performance as Alberto ‘The Shadow’ in Scarface, Antonio Nappa in Oz and for his Emmy-nominated performance as Héctor “Tio” Salamanca in Breaking Bad and Better Call Saul. Margolis was born in Philadelphia, Pennsylvania, the son of Fanya (Fried) and Isidore Margolis. He is from a Jewish immigrant family from Europe. He went to Temple University briefly before moving to New York City, where he studied drama with Stella Adler and at the Actors Studio. He is noted for his supporting roles in Scarface and the films of Darren Aronofsky: Pi, Requiem for a Dream, The Fountain, The Wrestler, Black Swan and Noah. Aronofsky wrote the role of Father Avila in The Fountain specifically for Margolis. He has had recurring roles on numerous TV shows, including The Equalizer, Quantum Leap, Law & Order, Crossing Jordan, and Californication. For his role in Breaking Bad, Margolis received a nomination for a Primetime Emmy Award for Outstanding Guest Actor in a Drama Series. Margolis is also a stage actor, appearing as Gus in Tony Kushner’s The Intelligent Homosexual’s Guide to Capitalism and Socialism with a Key to the Scriptures in the Berkeley Repertory Theater’s 2014 season.