Andrea Riseborough as Suze

Harry Melling as Arthur

Karl Glusman as Teddy

Demi Moore as Maureen

Ryan Simpkins as Dickie

Jake Choi as Lon

Karim Saleh as Gene

Matt D'Elia as Raymond

Jake Sidney Cohen as Russell

Cole Escola as Billy

Jaz Sinclair as Joanne

Alisa Torres as Ida

Yedoye Travis as Les

Marquis Rodriguez as Baker

Dana Ashbrook as Cal

Mary Lynn Rajskub as Lois

Ashley Cinq-Mars as Bride

Matt Aylward as Groom

Mackenzie Black as Wedding Dancer №1

Tiki Preston as Wedding Dancer №2

Katie Conrad as Wedding Dancer №3

Maeve Fahey as Wedding Dancer №4

Chris Eigeman as Arthur's Father (voice) (uncredited)

Amanda Kramer as Sailor (uncredited)