Ben Stiller
Josh Schrebnick
Naomi Watts
Cornelia Schrebnick
Adam Driver
Jamie Massey
Amanda Seyfried
Darby Massey
Charles Grodin
Leslie Breitbart
Adam Horovitz
Fletcher
Maria Dizzia
Marina
Dree Hemingway
Tipper
Brady Corbet
Kent Arlington
Matthew Maher
Tim
Peter Yarrow
Ira Mandelstam
Bonnie Kaufman
Ira's Wife
Hector Otero
Frank
Deborah Eisenberg
New School Woman
Matthew Shear
Benny
Annie Baker
Elise
Quincy Tyler Bernstine
Pepper
James Manzello
Music Class Band
Laura Hankin
Music Class Band
Stoddard Blackall
Music Class Band
Ariel Bethany
Music Class Band
James Saito
Dr. Nagato
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
Guy Boyd
Bar Patron
Adam Senn
Bartender
Peter Bogdanovich
Speaker
Greta Lee
Sundance Interviewer (voice)
Jake Perlin
Jake (uncredited)
Scott Rudin
Party Guest (uncredited)