| Michael Stuhlbarg | Prof. Lawrence 'Larry' Gopnik |
| Richard Kind | Uncle Arthur |
| Fred Melamed | Sy Ableman |
| Sari Lennick | Judith Gopnik |
| Aaron Wolff | Danny Gopnik |
| Jessica McManus | Sarah Gopnik |
| Peter Breitmayer | Mr. Brandt |
| Brent Braunschweig | Mitch Brandt |
| David Kang | Clive Park |
| Benjy Portnoe | Danny's Reefer Buddy |
| Director | Ethan Coen; Joel Coen |
| Producer | Tim Bevan; Ethan Coen |
| Writer | Joel Coen; Ethan Coen |
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