Matt Damon as Paul Safranek

Christoph Waltz as Dusan Mirkovic

Hong Chau as Ngoc Lan Tran

Kristen Wiig as Audrey Safranek

Rolf Lassgård as Dr. Jorgen Asbjørnsen

Ingjerd Egeberg as Anne-Helene Asbjørnsen

Udo Kier as Konrad

Søren Pilmark as Dr. Andreas Jacobsen

Jason Sudeikis as Dave Johnson

Maribeth Monroe as Carol Johnson

Jayne Houdyshell as Paul's Mother

Phil Reeves as Audrey's Dad Larry

James Van Der Beek as Anesthesiologist

Alison J. Palmer as Anesthesiologist's Wife

Tim Driscoll as Good Friend Tim

Kristen Thomson as Good Friend Gina

Kevin Kunkel as Buddy Kevin

Patrick Gallagher as Drunk Guy at Bar

Linda M. Anderson as Realtor

John Reynolds as Estate Sale Buyer

Carmen Orellana as Meat Cutter Carmen

David Noonen as Meat Cutter Dave

Bob Bezousek as Omaha Steaks Bob

Ana Marie Cox as TV Pundit

Roland Martin as TV Pundit

Milo Goodman as Mortgage Broker

Dave Sokolowski as Friend at Bar

Michael Heathcote as Carrying Box Carrier

Martha Girvin as Curious Reunion Friend

Brendan Beiser as Reunion Friend

Alison Brooks as Reunion Friend

Paul Constable as Reunion Friend

Neil Patrick Harris as Jeff Lonowski

Laura Dern as Laura Lonowski

Niecy Nash-Betts as Leisureland Salesperson

Margo Martindale as Woman on Shuttle

Kerri Kenney as Single Mom Kristen

Donna Lynne Champlin as Leisureland Administrator

Don Lake as Leisureland Guide Matt

Mary Kay Place as Land's End Customer (voice)

Sherry Mandujano as Waiting Room Nurse

Kimberly Kodatsky as Treatment Room Nurse

Larry Mannell as Downsizing Supervisor

Kerry-Lee Finkle as Downsizing Nurse

Natasha Bromfield as Recovery Room Nurse

Raffaele Brereton as Leisureland Orderly

Damiãn Garth Brown as Leisureland Orderly

Jermaine Otis Granville as Leisureland Orderly

Jeffrey Sinclair as Leisureland Orderly

Richard D. Leko as Woman on Shuttle's Son

Jon De Leon as Keepsake Box Mover

Howard J. Davis as Keepsake Box Mover

Maryam Moshiri as BBC Anchor

Bill Coulter as Brian Fakler

Jeff Clarke as Divorce Lawyer

Juan Carlos Velis as Call Center Co-Worker

Paul Mabon as Olive Garden Roger

Veena Sood as Leislureland Housewife

Nick Douzenis as Greek Party Guest

Spiros Kontos as Greek Party Guest

Maria Kontou as Greek Party Guest

Peter Melatos as Greek Party Guest

Loukia Papadapoulos as Greek Party Guest

Paul Landais as Spaniard

Rodrigo Salera as Spaniard

Salvador Sindoni as Spaniard

Balaram Vilchis as Spaniard

Ann Bordwine Beeder as Cool Woman at Dusan's Party

Kathryn Aboya as Dose Girl at Dusan's Party

Jack Haven as Dusan's Girlfriend

Kristina Cocoli as Dusan's Party Girl

Lina Shekhovtsova as Dusan's Party Girl

Jeffrey R. Smith as Guy at Dusan's Party

Pepe Serna as Señor Cárdenas

Rose Bianco as Gladys

Lidia Perez as Ringworm Mother

Ramon Marroquin as Ringworm Father

Cicela Bravatti as Bickering Deaf Couple

Jorge Tello as Bickering Deaf Couple

Pamela Archer as Alondra Resident

Dalila Gamboa Diaz as Alondra Resident

Margareta Pettersson as Solveig Edvardsen

Joaquim de Almeida as Conference Director Dr. Pereira

Cameron Geddes as Little Ronni

Bjørnar Egede-Nissen as Torvald

Warren Belle as Tunde

George B. Seremba as Asbjørnsen's Colleague

Christoph Friedrich Richter as Norway Colony Scientist

Michaela Sanielevici as Norway Colony Scientist

Caroline Andersen as Colony Member

Erik Andersen as Colony Member

Solveig Barber as Colony Member

Aaron Befus as Colony Member

Bent Brakas as Colony Member

Steve Fievet as Colony Member

Jahkeil Goldson as Colony Member

David Gudjonsson as Colony Member

Marianne Haldorsen as Colony Member

Jani Hamalainen as Colony Member

Ida Linckert Hertzman as Colony Member

Erik Irwin as Colony Member

Anastasia Kharlamova as Colony Member

Ksenia Daniela Kharlamova as Colony Member

Aleksander Krogevoll as Colony Member

Elizabeth Jeanne le Roux as Colony Member

Tero Konttinen as Colony Member

Raimo Kurppa as Colony Member

Kristin Lyssand as Colony Member

Mark Makivirta as Colony Member

Sari Miettinen as Colony Member

Tanya Missirlian as Colony Member

Antti Muhunen as Colony Member

Kent Nielsen as Colony Member

Riita Nikolakakos as Colony Member

Velva Nystrom as Colony Member

Thomas Paloheimo as Colony Member

Lars Paronen as Colony Member

Jacob Pettersson as Colony Member

Kimberly Rowntree as Colony Member

Jorgen Runas as Colony Member

Michael Skretteberg as Colony Member

Tomas Straum as Colony Member

Kari Svenneby as Colony Member

Alari Tork as Colony Member

Thomas Wicks as Colony Member

Kristina Yedlitska as Colony Member

Hélène Cardona as Newscaster (uncredited)