Joseph Gordon-Levitt character Ethan Miller
Seth Rogen character Isaac Greenberg
Anthony Mackie character Chris Roberts
Lizzy Caplan character Diana
Jillian Bell character Betsy Greenberg
Mindy Kaling character Sarah
Michael Shannon character Mr. Green
Lorraine Toussaint character Mrs. Roberts
Ilana Glazer character Rebecca Grinch
James Franco character James
Nathan Fielder character Joshua
Heléne Yorke character Cindy
Aaron Hill character Tommy Owens
Tracy Morgan character Narrator / Santa
Randall Park character Boss
Miley Cyrus character Herself
Natalie Knepp character Coat Check Girl
Theodora Miranne character Woman
Aly Mang character Party Attendee & Pro Athlete Girlfriend
Nicola Fiore character Exotic Dancer
Marija Skangale character Snow Globe Dancer
Baron Davis character Baron Davis
Jason Mantzoukas character Bad Santa #1
Jason Jones character Bad Santa #2
Clem Cheung character Deli Owner
Michaela Sprague character Isaac's Daughter
