cast
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Steve Carell
David Sheff
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Timothée Chalamet
Nic Sheff
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Maura Tierney
Karen Barbour
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Amy Ryan
Vicki Sheff
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Christian Convery
Jasper Sheff
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Oakley Bull
Daisy Sheff
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Kaitlyn Dever
Lauren
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Stefanie Scott
Julia
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Julian Works
Gack
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Jack Dylan Grazer
12-Year-Old Nic Sheff
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Zachary Rifkin
8-Year-Old Nic Sheff
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Kue Lawrence
5-Year-Old Nic Sheff
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Timothy Hutton
Dr. Brown
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Amy Forsyth
Diane
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Andre Royo
Spencer
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Ricky Low
Destiny
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LisaGay Hamilton
Rose
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Carlton Wilborn
Vince
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Amy Aquino
Annie Goldblum
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Marypat Farrell
Julia's Mother
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Brandon James Cienfuegos
Kid
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Cheska Corona
Kid
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Mandeiya Flory
Kid
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Martha T. Newman
Flight Attendant
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Minerva García
Nurse @ Bellevue
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Nikki Snipper
Airline Attendant
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Anastasia Leddick
Speaker @ 12 Step Meeting
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Edward Fletcher
Minister
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Justin Townes Earle
Wedding Guest
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Seann Gallagher
Father @ Graduation
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Brooklin Thacher
Principal @ Graduation
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Sasha Kelly Jackson
EMT
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Tom Beyer
Meeting Leader
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David Mendenhall
Rocker (uncredited)