Kristen Stewart as Abby

Mackenzie Davis as Harper

Mary Steenburgen as Tipper

Victor Garber as Ted

Alison Brie as Sloane

Mary Holland as Jane

Dan Levy as John

Burl Moseley as Eric

Aubrey Plaza as Riley Johnson

Sarayu Blue as Carolyn McCoy

Jake McDorman as Connor

Ana Gasteyer as Harry Levin

Caroline Harris as Kelly

Jenny Gulley as Ashley

Dominique Allen Lawson as Levi

Michelle Buteau as Trudy

Carla Gallo as Angry Homeowner Lady

Timothy Simons as Mall Security Ed

Lauren Lapkus as Mall Security Crystal

Jinkx Monsoon as Em. K. Ultra

BenDeLaCreme as Miss L'Teau

Anis N'Dobe as Magnus

Asiyih N'Dobe as Matilda

Sean Michael Weber as Barista

Sarab Kamoo as Striking Woman Jeweler

Chelsea Banglesdorf as Colleen the Hostess

Liron Blumenthal as Fancy Restaurant Waitress

Daryn Kahn as Todd, Bearded Guy

Matt Newell as Guard Eugene

Dave Maulbeck as Book Buyer

Donald J. Hewitt Jr. as Hand Holder Man

Christopher Jon Gombos as Huge Man

Daina Griffith as Caroler

Daniel Krell as Caroler

Dominique Briggs as Caroler

Jonathan Berry as Caroler

Gina Jun as Christmas Party Guest (uncredited)

Daniel Johnson as Barista Chef (uncredited)