| 角色 | 演员 |
| Dylan | 贾斯汀·汀布莱克Justin Timberlake |
| Jamie | 米拉·库妮丝Mila Kunis |
| Lorna | 派翠西娅·克拉克森Patricia Clarkson |
| Annie | 珍娜·艾夫曼Jenna Elfman |
| Parker | 布赖恩·加连保格Bryan Greenberg |
| Mr. Harper | 理查·詹金斯Richard Jenkins |
| Tommy | 伍迪·哈里森Woody Harrelson |
| Sam | 诺兰·古德Nolan Gould |
| Quincy | 安迪·萨姆伯格Andy Samberg |
| Himself | Shaun White |
| Driver | 安德鲁·弗莱明Andrew Fleming |
| Female Co-Worker | Catherine Reitman |
| Flight Attendant | Courtney Henggeler |
| Darin Arturo Morena | 丘增 |
| Hostess | Tiya Sircar |
| Ira Ungerleider | Christopher T. Wood |
| Kayla | 艾玛·斯通Emma Stone |
| Laura | Lili Mirojnick |
| Male Co-Worker(L.A.) | Rupak Ginn |
| Older Man(as Duane Shepard Sr.) | Duane R. Shepard Sr. |
| Taxi Driver | Chike Johnson |
| Pam Niborski | Angelique Cabral |
| Security Guard | Lance Kerfuffle |
| Photographer | Jerry Ying |
| Caricaturist | Jerry Hyman |
| Dylan's Neighbor | Nick Lee |
| Dylan's Friend | Jason Sung Lee |
| Carriage Driver | Michael Morris |
| Policeman | Brooklyn McLinn |
| Passenger(uncredited) | William Patrick Brown |
| Dancer(uncredited) | Teresa Hui；Hannibal Miles |
| Classmatte | Alex Phillip |
| Reception Guest(uncredited) | Alex Phillip |
| Flash Mob Extra(uncredited) | Agueda Ramirez |
| Airport Diner(uncredited) | Shane Schoeppner |
| Vivienne | Evelina Pereira |
| The Sophisticated Gentleman | James Schram |
| Movie Usher | Tom Stratford |
| DeeDee | Tammy Dugen |
| Office Staff | Jerald Garner |
| Cameron | Cameron Cash |
| Grand Central Flash Mober | Moe Hindi |
| Sloane | Jessica Blair Herman |
| Himself | Gustavo Cunha |
| Times Square flashmob | Sindy Nurse |
| Funny ChessPlayer | Joe Mele |
| GQ Office Staff | Matthew Thomas Lange |
| Flashmob | Ebony C. Duncan |
| Nicholas - Flower Girls Boyfriend | Brent Bailey |
| Flower Lady | Jheri Cavitt |
| African American GQ Model | Lawrence Wayne Curry |
| Downtroden Veteran | Skippy D |
| Police Officer | Eric Davis |
| Cargo Pants Guy | Jonathan Gabrus |
| Times Square Flashmobber | Larry Gevirtz |
| Airport woman | Amanda Gist |
| Chess Player | Paul Hamill |
| Gunslinger Phone Guy | Jian |
| Background | Anna Kuchma |
| Airline Passenger | Laurie Landry |
| German Tourist | Peter Linari |
| Rude JFK Traveler | Stephen Michael |
| Flashmob Dancer | Hannibal Miles |
| Flash Mobber | Michelle Nagell |
| GQ Model | Doan Nguyen |
| Flash Mobber | Kat Ochsner |
| Flash Mob Extra | Agueda Ramirez |
| Marina Restaurant Patron | Shawna Reina |
| Sheriff R2-D2 | Matthew Rocheleau |
| Punk Rock Pedestrian | Bejay Rose |
| Drooling Guy | Franklin Ruehl |
| Flash Mobber | Christiana Scheib |
| Airport Diner | Shane Schoeppner |
| Business Consultant | Ciel Turich |
| Hallal Food Vendor | Uzimann |
| GQ Staffer | Ryan Van de Kamp Buchanan |
| Photographers Assistant | James Wallington |
