Ben Stiller
Josh Schrebnick
Naomi Watts
Cornelia Schrebnick
Adam Driver
Jamie Massey
Amanda Seyfried
Darby Massey
Charles Grodin
Leslie Breitbart
Maria Dizzia
Marina
Adam Horovitz
Fletcher
Dree Hemingway
Tipper
Brady Corbet
Kent Arlington
Matthew Maher
Tim
Peter Yarrow
Ira Mandelstam
Bonnie Kaufman
Ira's Wife
Hector Otero
Frank
Matthew Shear
Benny
Annie Baker
Elise
Quincy Tyler Bernstine
Pepper
James Saito
Dr. Nagato
Deborah Eisenberg
New School Woman
James Manzello
Music Class Band
Laura Hankin
Music Class Band
Stoddard Blackall
Music Class Band
Ariel Bethany
Music Class Band
Juan Torriente
Leslie's Colleague
Dean Wareham
Shaman
Erin Byrne
Ayahuasca Woman
Lily Thorne
Party Guest
Matthew Kaplan
Party Guest
Danielle Slavick
Party Guest
Greg Keller
Party Guest
Nico Baumbach
Party Guest
Liz Stauber
Kent's Sister
Ryan Serhant
Hedge Fund Dave
Wyatt Ralff
Louis
John Wildman
Red Carpet Coordinator
Roberto Pascotto
Tribute Guest
Adam Senn
Bartender
Guy Boyd
Bar Patron
Peter Bogdanovich
Speaker
Jake Perlin
Jake (uncredited)
Greta Lee
Sundance Interviewer (voice)
Scott Rudin
Party Guest (uncredited)