Simon Pegg

Sidney Young

Kirsten Dunst

Alison Olsen

Danny Huston

Lawrence Maddox

Megan Fox

Sophie Maes

Jeff Bridges

Clayton Harding

Gillian Anderson

Eleanor Johnson

Max Minghella

Vincent Lepak

Jefferson Mays

Bill Nathanson

Bill Paterson

Richard Young

Miriam Margolyes

Mrs. Kowalski

Janette Scott

Sidney's Mother

Katherine Parkinson

PR Woman

Felicity Montagu

Clipboard Nazi

Thandiwe Newton

Self

John Lightbody

Assistant Hotel Manager

Ian Bonar

Post Modern Review Staff

James Corden

Post Modern Review Staff

Fenella Woolgar

Post Modern Review Staff

Chris O'Dowd

Post Modern Review Staff

Miquel Brown

Clayton's Assistant

Nathalie Cox

Woman in Bar

Sam Douglas

Barman

Charlotte Devaney

Bobbie

Margo Stilley

Ingrid

Hannah Waddingham

Elizabeth Maddox

Diana Kent

Rachel Petkoff

Ashley Madekwe

Vicky

Lisa McAllister

Sophie Maes' Assistant

Jane Perry

Mrs. Harding

Robert B. Weide

July 4th Party Guest

Nathan Nolan

July 4th Party Waiter

Andy Lucas

Wizard Dentist

Brian Austin Green

Party Guest (uncredited)

Toni Collette

Self (uncredited)

Daniel Craig

Self (uncredited)

Ricky Gervais

Self (uncredited)

Kate Winslet

Self (uncredited)

Dennis Jay Funny

Office Lobby Concierge (uncredited)

Elli

Newsstand Vendor (uncredited)

Forbes KB

Hotel Security (uncredited)

Davide Petrucci

Guest at Party (uncredited)

Ashton Swinford

Glamorati (uncredited)