cast
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Saoirse Ronan
Lady Bird McPherson
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Laurie Metcalf
Marion McPherson
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Tracy Letts
Larry McPherson
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Lucas Hedges
Danny O'Neill
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Timothée Chalamet
Kyle Sheible
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Beanie Feldstein
Julie Steffans
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Lois Smith
Sister Sarah Joan
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Stephen McKinley Henderson
Father Leviatch
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Odeya Rush
Jenna Walton
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Jordan Rodrigues
Miguel McPherson
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Marielle Scott
Shelly Yuhan
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John Karna
Greg Anrue
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Jake McDorman
Mr. Bruno
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Bayne Gibby
Casey Kelly
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Laura Marano
Diana Greenway
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Marietta DePrima
Miss Patty
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Daniel Zovatto
Jonah Ruiz
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Kristen Cloke
Ms. Steffans
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Andy Buckley
Uncle Matthew
- Paul Keller Parish Priest
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Kathryn Newton
Darlene Bell
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Myra Turley
Sister Gina
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Bob Stephenson
Father Walter
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Abhimanyu Katyal
Friendly Banker
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Chris Witaske
Business Jock
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Ben Konigsberg
David From College
- Gurpreet Gill Convenience Store Clerk
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Richard Jin Namkung
Cool Coffee Manager
- Joan Patricia O'Neil Danny's Grandmother
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Robert Figueroa
Cast Removal Doctor
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Carla Valentine
Guidance Counselor
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Roman Arabia
Luis Cruz
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Monique Edwards
NYC Nurse
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Matthew Maher
NYC Man on Street
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Anita Kalathara
Prom Chairwoman
- Debra Miller Saleswoman Joyce
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Georgia Leva
Senior Class Candidate
- Derek Butler "Merrily We Roll Along" Performer
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London Thor
"Merrily We Roll Along" Performer
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Shaelan O'Connor
"Merrily We Roll Along" Performer
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Christina Offley
"Merrily We Roll Along" Performer
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Sabrina Schloss
"Merrily We Roll Along" Performer
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Connor Mickiewicz
"Merrily We Roll Along" Performer
- Erik Daniells "Merrily We Roll Along" Performer
- Cynthia Cales Immaculate Heart of Mary Teacher
- Giselle Grams Immaculate Heart of Mary Teacher
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Ithamar Enriquez
Driving Instructor
- Luisa Lee Young Lady
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Danielle Macdonald
Another Young Lady
- Adam Brock Band Lead Singer
- Bonnie Jean Shelton Fab 40s Realtor
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Rebecca Light
Mr. Bruno's Wife
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Janet Song
Administrator (uncredited)