Linz was born in Santa Barbara, California, the son of Deborah Baltaxe, an attorney, and Dr. Daniel Linz, a professor of psychology at the University of California, Santa Barbara. His parents are now divorced, and he lives with his mother. He has two younger sisters named Lily Alice and Livia. Linz's mother is Jewish and Linz had a Bar Mitzvah when he was 13. He attended Alexander Hamilton High School in Los Angeles and graduated from the University of California, Berkeley, where he was a member of the improvisation and sketch comedy group, jericho!. In Linz's past, he was a lead science instructor at Galileo Learning, a pedestrian programs intern at City of Los Angeles, a strategy and planning department intern at Metrolink, and a legal researcher for Smith & Baltaxe, LLP.