| Sacha Baron Cohen | .... | Aladeen |
| Sacha Baron Cohen | .... | Efawadh |
| Sayed Badreya | .... | Omar |
| Rocky Citron | .... | Baby Aladeen |
| Liam Campora | .... | Aladeen Age 6 |
| Aasif Mandvi | .... | Doctor |
| Rizwan Manji | .... | Patient |
| Rick Chambers | .... | Newscaster Voiceover (Stimme) |
| Elsayed Mohamed | .... | Wadiyan Olympic Official |
| Adeel Akhtar | .... | Maroush |
| Horatio Sanz | .... | Aide on Balcony |
| Ben Kingsley | .... | Tamir |
| Elena Goode | .... | Virgin Guard |
| Naz Homa | .... | Virgin Guard |
| Dawn Zimniak | .... | Virgin Guard |
| Victoria Beltran | .... | Virgin Guard |
| Danielle Burgio | .... | Virgin Guard |
| Dominique DiCaprio | .... | Virgin Guard |
| Aja Frary | .... | Virgin Guard |
| Fred Melamed | .... | Head Nuclear Scientist |
| Jason Mantzoukas | .... | Nadal |
| Justo Usin | .... | Assassin |
| Megan Fox | .... | Herself |
| Joey Slotnick | .... | Homeless Man |
| Ian Roberts | .... | NYC Cop |
| Anna Faris | .... | Zoey |
| Chris Parnell | .... | News Anchor |
| Jessica St. Clair | .... | Denise |
| David Fonteno | .... | Secretary General |
| Anna Katarina | .... | Angela Merkel |
| Michael Delaney | .... | Delegate |
| William Fowle | .... | Delegate |
| Bobby Lee | .... | Mr. Lao |
| Olek Krupa | .... | Gazprom Executive |
| Alan Cox | .... | BP Executive |
| Kevin Corrigan | .... | Slade |
| Mitchell Green | .... | Joteph |
| Jenny L. Saldaña | .... | Hannah |
| George Bartenieff | .... | Romanian Accountant |
| Chris Gethard | .... | Clark |
| Fred Armisen | .... | Waiter |
| Fred Armisen | .... | Minister |
| Sean T. Krishnan | .... | Waiter |
| Sean T. Krishnan | .... | Cereal Loving Soldier |
| Eliyas Qureshi | .... | Angry Wadiyan Diner |
| Chris Elliott | .... | Mr. Ogden |
| Jon Glaser | .... | Obnoxious Customer |
| Daniel Burress | .... | Customer in Bathroom |
| Pete Wiggins | .... | Bratty Kid Customer |
| Adam LeFevre | .... | Man in Helicopter |
| Marceline Hugot | .... | Woman in Helicopter |
| Anthony Mangano | .... | Arresting Officer |
| Melissa Francis | .... | Local News Reporter |
| Tim J. Ellis | .... | Offended Customer |
| Michael Hardart | .... | Store Customer |
| Miriam Tolan | .... | Health Inspector's Wife |
| Zachary Mackiewicz | .... | Health Inspector's Son |
| J. B. Smoove | .... | Funeral Usher |
| Hollis Granville | .... | Eldridge Douglas |
| Ann Dev'Unay | .... | Mourner |
| Sondra James | .... | Friendly Customer |
| Tara Copeland | .... | Mom Shopping with Toddler |
| Sydney Berry | .... | Toddler |
| Kathryn Hahn | .... | Pregnant Woman |
| Seth Morris | .... | Pregnant Woman's Husband |
| Kate Pak | .... | Mrs. Lao |
| Regina Anne Rizzo | .... | Puppeteer |
| Tracey Ruggiero | .... | Mugging Victim |
| Karl Jacob | .... | Aladeen Double |
| Marcia DeBonis | .... | Woman in Hotel Window |
| Nasim Pedrad | .... | Female GMW Host |
| Mousa Kraish | .... | Wadiyan Soldier |
| Neimah Djourabchi | .... | Wadiyan Soldier |
| Sevan Greene | .... | Wadiyan Soldier |
| Nadav Malamud | .... | Wadiyan Soldier |
| Fred North | .... | Helicopter Pilot (NYC) |
| Fred Hanna | .... | Helicopter Pilot (NYC) |
| William Richards | .... | Helicopter Pilot |
| Marc Wolff | .... | Helicopter Pilot (Spain) |
| Cordell King | .... | Helicopter Ground Crew |
| Jared Acosta | .... | Palace Guard |
| Mohamed Alshami | .... | Nuclear Scientist (uncredited) |
| Carmel Amit | .... | Virgin Guard (uncredited) |
| Glenn Andreiev | .... | Press Photographer (uncredited) |
| Andrew Ayala | .... | Dinner Patron (uncredited) |
| Ari Barkan | .... | Angry UN Protester (uncredited) |
| Akim Black | .... | Secret Service Agent (uncredited) |
| Jasmine Hope Bloch | .... | Protester (uncredited) |
| Jennifer Butler | .... | French Restaurant Patron (uncredited) |
| Mark Campbell | .... | BBC Reporter (uncredited) |
| Ivan Cardona | .... | Minister (uncredited) |
| Hillary Clinton | .... | Herself (archive footage) (uncredited) |
| Peter Conboy | .... | NYC Cop (uncredited) |
| Michael Connolly | .... | Fan of Dictator (uncredited) |
| Jeevan D'Souza | .... | Power Station Technician (uncredited) |
| Barbara Ann Davison | .... | UN Protester (uncredited) |
| Kevin Dedes | .... | Jason Sudeikis as Cameraman (uncredited) |
| Stephen Dexter | .... | Angry Protestor (uncredited) |
| Olivia Dudley | .... | Nurse Svetlana (uncredited) |
| Amanda Dutton | .... | UN Protestor (uncredited) |
| Gad Elmaleh | .... | Demonstrator in Wadiya (uncredited) |
| Marshall Factora | .... | Filipino Dignitary (uncredited) |
| Viveca Gardiner | .... | Protestor (uncredited) |
| Larry Gevirtz | .... | Diplomat (uncredited) |
| Ruben Roberto Gomez | .... | Venezuelan Ambassador (uncredited) |
| Shawn Gonzalez | .... | Angry Protester (uncredited) |
| Sean Grady | .... | Bellboy (uncredited) |
| Jeff Grossman | .... | NYC Cop (uncredited) |
| Iyad Hajjaj | .... | Wadiyan Soldier (uncredited) |
| Hanna Halldorsdottir | .... | Customer (uncredited) |
| Brandon Lee Harris | .... | Crowd Member (uncredited) |
| Busty Heart | .... | Etra Head Virgin Guard (uncredited) |
| Moe Hindi | .... | Lab Technician (uncredited) |
| Michael C Hoaglin | .... | Paparazzo (uncredited) |
| Peter Iasillo Jr. | .... | Protester (uncredited) |
| Sam Ibram | .... | Olympic Spectator (uncredited) |
| Shadner Ifrene | .... | Doorman (uncredited) |
| Ebrahim Jaffer | .... | Doctor (uncredited) |
| Tony Joe | .... | UN Security Guard (uncredited) |
| Jaiden Kaine | .... | African King (uncredited) |
| Rock Kohli | .... | Servant #1 /Wadiyan Diner (uncredited) |
| Alex Kruz | .... | Japanese Olympic Runner (uncredited) |
| Arash Mokhtar | .... | Minister (uncredited) |
| Dushawn Moses | .... | UN Security (uncredited) |
| Joanna Moskwa | .... | Russian Escort (uncredited) |
| Michelle Nagell | .... | Protestor (uncredited) |
| Edward Norton | .... | Himself (uncredited) |
| B. J. Novak | .... | (uncredited) |
| Kelsey O'Brien | .... | Prostitute (uncredited) |
| Barack Obama | .... | Himself (archive footage) (uncredited) |
| Anton Obeid | .... | New BBC Interviewer (uncredited) |
| Niyi Oni | .... | Diplomat (uncredited) |
| Adaku Ononogbo | .... | Virgin Guard (uncredited) |
| Melina Paez | .... | Protestor (uncredited) |
| Loukas Papas | .... | UN Security Councilman (uncredited) |
| Jim Piddock | .... | (uncredited) |
| Catherine Pierce | .... | Mortician (uncredited) |
| Dennis Rees | .... | UN Delegate (uncredited) |
| John C. Reilly | .... | Clayton (uncredited) |
| Shindo Ki Rodriguez | .... | Protestor (uncredited) |
| Andrew Rogers | .... | French Restaurant Patron (uncredited) |
| Ross Ryman | .... | Power Station Technician (uncredited) |
| Garry Shandling | .... | Inspector (uncredited) |
| Sardor Sodikov | .... | Soldier (uncredited) |
| Ronnie Tisdale | .... | Swedish Olympic Runner (uncredited) |
| Uzimann | .... | Nuclear Scientist (uncredited) |
| Village | .... | Hotel Security (uncredited) |
| Barbara Vincent | .... | Park Avenue Lady (uncredited) |
| Tony von Halle | .... | Soldier (uncredited) |
| Tony von Halle | .... | Wrangler (uncredited) |
| Sylvia Ward | .... | Russian Escort (uncredited) |
| Steven Weisz | .... | Diplomat (uncredited) |
| James Wilcox | .... | Customer (uncredited) |
| Richard Worsley | .... | Angry Protester (uncredited) |