Vack was born in the West Village, New York City, to Jane (née Spivack) and Ronald Brown, a movie producer and writer. He has one younger sister who is an actress and writer. He grew up in New York City. Vack is Jewish. He attended Riverdale Country School and graduated from Professional Children's School. Vack graduated from the University of Southern California, where he studied Theater. Vack dated Troian Bellisario in college.Vack made his acting debut in the short film Dear Diary (1996), which won the Academy Award for Best Live Action Short Film. Vack has guest-starred in single episodes of Hope & Faith (2004), Third Watch (2004), Law & Order: Special Victims Unit (2005), Ghost Whisperer (2009), and Cold Case (2010).
By Posted on