After finishing high school, Löwensohn studied acting in New York City and played in several successful theatre productions. She started her film career in 1991 with Theory of Achievement. Some of her notable roles are Diana Reiter in Schindler's List (1993), Katya in the 1994 Seinfeld episode "The Gymnast", Iris in Six Ways to Sunday (1997), and Anne Levels in The Wisdom of Crocodiles (1998).
