No Mercy (2004) was a PPV which took place on October 3, 2004 at the Continental Airlines Arena in East Rutherford, New Jersey. It was the seventh annual No Mercy event. The event starred wrestlers from the SmackDown! brand. The main event was a Last Ride match, where the objective was to place an opponent in a hearse located on the entrance stage and drive them out of the arena. WWE Champion JBL defended against The Undertaker. Two predominant bouts were featured on the undercard; in respective singles matches, John Cena fought Booker T for the WWE United States Championship, and Kurt Angle fought The Big Show.
| Actor | Role |
|---|---|
 Mark CalawayThe Undertaker | The Undertaker |
 John LayfieldJohn "Bradshaw" Layfield | John "Bradshaw" Layfield |
 John CenaJohn Cena | John Cena |
 Booker Huffman, Jr.Booker T | Booker T |
 Paul WightBig Show | Big Show |
 Kurt AngleKurt Angle | Kurt Angle |
 Peter Gruner Jr.Billy Kidman | Billy Kidman |
 Paul LondonPaul London | Paul London |
 Eddie GuerreroEddy Guerrero | Eddy Guerrero |
 Matthew WieseLuther Reigns | Luther Reigns |
 Charles HaasCharlie Haas | Charlie Haas |
 Jackie GaydaMiss Jackie | Miss Jackie |
| RRico ConstantinoRico | Rico |
 Dawn Marie PsaltisDawn Marie | Dawn Marie |
 Devon HughesD-Von Dudley | D-Von Dudley |
 Mark LoMonacoBubba Ray Dudley | Bubba Ray Dudley |
 René GoguenRene Dupree | Rene Dupree |
 Rob SzatkowskiRob Van Dam | Rob Van Dam |
 Óscar Gutiérrez RubioRey Mysterio | Rey Mysterio |
| KKenzo SuzukiKenzo Suzuki | Kenzo Suzuki |
 Mark JindrakMark Jindrak | Mark Jindrak |
 Matt HysonSpike Dudley | Spike Dudley |