Michael Stuhlbarg
Larry Gopnik
Sari Lennick
Judith Gopnik
Jessica McManus
Sarah Gopnik
Peter Breitmayer
Mr. Brandt
Brent Braunschweig
Mitch Brandt
Benjamin Portnoe
Danny's Reefer Buddy
Andrew S. Lentz
Cursing Boy on Bus
Jon Kaminski Jr.
Mike Fagle
Alan Mandell
Rabbi Marshak
George Wyner
Rabbi Nachtner
Katherine Borowitz
Friend at the Picnic
Allen Lewis Rickman
Shtetl Husband
Yelena Shmulenson
Shtetl Wife
Ronald Schultz
Hebrew School Teacher
Jane Hammill
Larry's Secretary
Claudia Wilkens
Marshak's Secretary
Michael Lerner
Solomon Schlutz
Charles Brin
Hebrew School Principal
Michael Engel
Torah Blesser
Phyllis Harris
Hebrew School Tea Lady
Hannah Nemer
Sarah's Friend
Rita Vassallo
Law Firm Secretary
Warren Keith
Dick Dutton (voice)
Jim Lichtscheidl
Detective #2
Wayne A. Evenson
Russell Krauss
Scott Thompson Baker
Sci-Fi Movie Hero
Landyn Banx
Physics Student (uncredited)
Punnavith Koy
Physics Nerd (uncredited)
Joel Thingvall
Bar Mitzvah Guest (uncredited)
Amanda Day
Physics Student (uncredited)
