Happy New Year

Robert De Niro

Stan Harris

Michelle Pfeiffer

Ingrid Withers

Hilary Swank

Claire Morgan

Jessica Biel

Tess Byrne

Zac Efron

Paul

Ashton Kutcher

Randy

Halle Berry

Nurse Aimee

Jon Bon Jovi

Daniel Jensen

Katherine Heigl

Laura Carrington

Carla Gugino

Spiritual Dr. Morriset

Sarah Jessica Parker

Kim Doyle

Lea Michele

Elise

Josh Duhamel

Sam

Sofía Vergara

Ava

Abigail Breslin

Hailey Doyle

Seth Meyers

Griffin Byrne

Sarah Paulson

Grace Schwab

Til Schweiger

James Schwab

Alyssa Milano

Nurse Mindy

Cary Elwes

Stan's Doctor

Héctor Elizondo

Kominsky

Katherine McNamara

Lily Bowman

Ludacris

Brendan

Jake T. Austin

Seth

Nat Wolff

Walter

Yeardley Smith

Maude

Ryan Seacrest

Himself

Michael Bloomberg

Himself

Fiona Choi

Balinese Woman - Resolution Tour

Jim Belushi

Building Super

Mara Davi

Mika

Cassidy Reiff

Piper

Russell Peters

Chef Sunil

Serena Poon

Chef Ming

Common

Soldier

Jackie Seiden

Bride Trish

Joey McIntyre

Groom Rory

Beth Kennedy

Piper's Mom

Larry Miller

Harley (segment "Ahern Party")

Christine Lakin

Waitress Alyssa

Shea Curry

Wendy

Sandra Taylor

Patty

Matthew Broderick

Mr. Buellerton (non-crédité)

John Lithgow

Jonathan Cox (non-crédité)