cast
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Michael Stuhlbarg
Larry Gopnik
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Richard Kind
Uncle Arthur
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Fred Melamed
Sy Ableman
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Sari Lennick
Judith Gopnik
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Aaron Wolff
Danny Gopnik
- Jessica McManus Sarah Gopnik
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Peter Breitmayer
Mr. Brandt
- Brent Braunschweig Mitch Brandt
- David Kang Clive Park
- Benjamin Portnoe Danny's Reefer Buddy
- Jack Swiler Boy on Bus
- Andrew S. Lentz Cursing Boy on Bus
- Jon Kaminski Jr. Mike Fagle
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Ari Hoptman
Arlen Finkle
- Alan Mandell Rabbi Marshak
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Amy Landecker
Mrs. Samsky
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George Wyner
Rabbi Nachtner
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Michael Tezla
Dr. Sussman
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Katherine Borowitz
Friend at the Picnic
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Steve Park
Clive's Father
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Allen Lewis Rickman
Shtetl Husband
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Yelena Shmulenson
Shtetl Wife
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Fyvush Finkel
Dybbuk?
- Ronald Schultz Hebrew School Teacher
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Raye Birk
Dr. Shapiro
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Jane Hammill
Larry's Secretary
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Claudia Wilkens
Marshak's Secretary
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Simon Helberg
Rabbi Scott
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Adam Arkin
Divorce Lawyer
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James Cada
Cop #1
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Michael Lerner
Solomon Schlutz
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Charles Brin
Hebrew School Principal
- Michael Engel Torah Blesser
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Tyson Bidner
Magbiah
- Phyllis Harris Hebrew School Tea Lady
- Piper Sigel-Bruse D'vorah
- Hannah Nemer Sarah's Friend
- Rita Vassallo Law Firm Secretary
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Warren Keith
Dick Dutton (voice)
- Neil Newman Cantor
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Tim Russell
Detective #1
- Jim Lichtscheidl Detective #2
- Wayne A. Evenson Russell Krauss
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Scott Thompson Baker
Sci-Fi Movie Hero
- Landyn Banx Physics Student (uncredited)
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Punnavith Koy
Physics Nerd (uncredited)
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Joel Thingvall
Bar Mitzvah Guest (uncredited)
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Amanda Day
Physics Student (uncredited)