She acted in Rodney Ackland's stage adaptation of Fyodor Dostoievsky's novel, "Crime and Punishment," at the National Theatre in New York City with John Gielgud, Lilian Gish, Vladimir Sokoloff, Alice John, Sanford Meisner, and E.A. Krumschmidt in the cast. Theodore Komisarjevsky was director.
Although Haas did not appear in many English language films, she did have an important role in Alfred Hitchcock's 1953 film, I Confess. Haas was a personal friend of Hitchcock's, and Hitchcock cast her as Alma Keller, the wife of the murderer-janitor Otto Keller.