Russell Brand

Character: Arthur

Helen Mirren

Character: Hobson

Greta Gerwig

Character: Naomi Quinn

Jennifer Garner

Character: Susan Johnson

Geraldine James

Character: Vivienne

Luis Guzmán

Character: Bitterman

Nick Nolte

Character: Burt Johnson

Peter Van Wagner

Character: Naomi's Dad

Christina Jacquelyn Calph

Character: Tiffany

John Hodgman

Character: Peter, Candy Store Manager

Murphy Guyer

Character: Officer Kaplan

Saul Stein

Character: Officer #2

José Ramón Rosario

Character: Employment Clerk

John Hodgman

Character: Candy Store Manager

Scott Adsit

Character: Gummy Bear Man

Evander Holyfield

Character: Boxing Trainer

Robert Clohessy

Character: Veteran Cop

Ed Herbstman

Character: Rookie Cop

Jared Parker

Character: Wedding Kid

Tom Toner

Character: Wedding Priest

Richard Bekins

Character: Chancellor

Matt Malloy

Character: Spoon Guy

Nigel Barker

Character: Photographer

Tuffy Questell

Character: Tito

Sara Chase

Character: Journalist #1

Ali Reza

Character: Journalist #2

Brian McElhaney

Character: College Student

Charlie Hewson

Character: Receptionist / Best Man

Peter Brouwer

Character: Auctioneer

Stink Fisher

Character: Foreman

Debbie Lee Jones

Character: Kissed Woman

Pascal Yen-Pfister

Character: Maitre D'

Dylan Clark Marshall

Character: Boy on Tour

Steve Rosen

Character: Grand Central Waiter

Leslie Hendrix

Character: Alice Johnson

George Feaster

Character: James

Ed Jewett

Character: Group Leader

John Carrafa

Character: Choreographer

Jennie Eisenhower

Character: Maid of Honor

Sean Tarjyoto

Character: Bookstore Clerk

Pamela Stewart

Character: Librarian

Skai Jackson

Character: Library Girl #1

Tori Feinstein

Character: Library Girl #2

Jackson Nicoll

Character: Library Boy #1

Devin Almonte

Character: Susan's Bridesmaid (uncredited)

Jamie Choi

Character: Bridesmaid (uncredited)

Tatsumi Romano

Character: Tour Girl (uncredited)

Chelsey Donn

Character: Clerk (uncredited)