 | Sam Rockwell als Samuel |
 | Steve Zahn als Eddie |
 | Mark Ruffalo als Frank |
 | Josh Pais als Mitchell |
 | Paul Giamatti als Veal Chop |
 | Michael Schmidt als Bernie Jr. |
 | Christina Kirk als Hannah |
 | Raymond Serra als Barber |
 | Harvey Fierstein als Good Stuff Leo |
 | Michael Lerner als Big Fat Bernie Gayle |
 | Michael Showalter als Larry |
 | John Hamburg als Philip |
 | Ray Iannicelli als Swoop |
 | Ali Marsh als Sherry |
 | Jacob Reynolds als Cousin Ira |
 | Peter Dinklage als Leflore |
| Mark Shanahan als Party Coordinator |
| Emily Doubilet als "Sweet" Denise Schneider |
| Sidney Zubrow als Pappy |
| Blue Moreno als M.C. Victor |
| Ellen Hauptman als Joyce Kaufman |
 | John Tormey als Older Guy |
| Don Picard als Gunter |
| Dee Dee Friedman als Barbara |
| Carl Don als Hyman |
 | Allen Swift als Sol |
 | Seth Herzog als Gold Trophy |
| Richard Bolster als Gold Trophy |
| Brian Mullen als Self |
| Ian Helfer als Janusz |
 | Eric Bogosian als Edward Templeton Sr. (voice) |
| John Hamburg | Director |
| John Hamburg | Writer |
| Ellen Bronfman | Producer |
| Jeffrey Clifford | Producer |
| Jonathan Cohen | Producer |
| Andrew Hauptman | Producer |
| Michael Barrett | Director of Photography |
| Suzanne Pillsbury | Editor |
| Avy Kaufman | Casting |
| Anthony Gasparro | Production Design |
| Ondine Karady | Art Direction |
| James Clauer | Set Decoration |
| Catherine Marie Thomas | Costume Design |
| Michelle Kuznetsky Silverman | Music Supervisor |
| Mary Ramos | Music Supervisor |
| Eva Kolodner | Line Producer |
| Theodore Shapiro | Original Music Composer |
| Rain Kramer | Associate Producer |
| Katie Roumel | Unit Production Manager |
| Rob York | First Assistant Director |
| Tom Grant | Second Assistant Director |
| Brian Jude | Second Second Assistant Director |
| Julian Petrillo | First Assistant Director |
| John M. Tyson | First Assistant Director |
| Gretchen Gnaedinger | Set Dresser |
| Sherief Elkatsha | Set Dresser |
| Christopher B. Green | First Assistant Camera |
| Steven Lubensky | First Assistant Camera |
| Matthew W. Flannery | Second Assistant Camera |
| Melissa Soltis | Second Assistant Camera |
| Scott Barnard | Third Assistant Camera |
| Joia Speciale | Additional First Assistant Camera |
| Lloyd Handwerker | Additional First Assistant Camera |
| Joe Arcidiacono | "B" Camera Operator |
| Antonio Rossi | First Assistant "B" Camera |
| Peter S. Abraham | Steadicam Operator |
| Nicole Petitpierre | Continuity |
| Pamela Kezal | Assistant Costume Designer |
| Kyra Panchenko | Key Hair Stylist |
| Kyra Panchenko | Key Makeup Artist |
| Ariyela Wald-Cohain | Makeup & Hair Assistant |
| Coll Anderson | Production Sound Mixer |
| David Pastecchi | Boom Operator |
| John Katovisch | Music Coordinator |
| Julie Lichter | Casting Associate |
| Karen E. Etcoff | Extras Casting |
| Susan Fried | Extras Casting |
| Manny Siverio | Stunt Coordinator |
| Doreen A. Dixon | Post Production Supervisor |
| M. Scott Smith | Editor |
| Lisa Cossettini | First Assistant Editor |
| Sarah Brockhoff | First Assistant Editor |
| Richard LeGrand Jr. | Supervising Sound Editor |
| Harry E. Snodgrass | Sound Designer |
| Bob McNabb | Sound Effects Editor |
| William Hooper | Foley Editor |
| Samuel Webb | First Assistant Sound Editor |
| Johnny Caruso | Music Editor |
| Dan O'Connell | Foley Artist |
| John T. Cucci | Foley Mixer |
| Michael C. Casper | Sound Re-Recording Mixer |
| Daniel J. Leahy | Sound Re-Recording Mixer |
| Sharon McGeeney | Negative Cutter |
| Bob La Rossa | Color Timer |
| James Levine | Still Photographer |
| Abigail Cohen | Additional Still Photographer |
| Jenny Carchman | Additional Still Photographer |
| Andrew Edelman | Sound Mixer |
| Mike Decker | Boom Operator |
| Lisa Grosso | Wardrobe Assistant |
| Rita Da Silva | Additional Hairstylist |
| John Dicker | Assistant Editor |
| Juan Carlos Martinez | Supervising Sound Editor |
| Mary Ellen Porto | Sound Editor |
| Stephen Altobello | Foley Recordist |
| Elizabeth Henderson | Foley Artist |
| Dave Paterson | Foley Editor |
| Andy Kris | ADR Recordist |
| Jason Kaplan | Assistant Sound Editor |
| Thomas S. Drescher | Music Editor |
