Testing the Limit was a wrestling event promoted by Ring of Honor. It took place on August 7, 2004 at the Pennsylvania National Guard Armory in Philadelphia, Pennsylvania.
| Actor | Role |
|---|---|
 Daniel Solwold Jr.Austin Aries | Austin Aries |
 Bryan DanielsonNot listed | Not listed |
 Nuufolau Joel SeanoaSamoa Joe | Samoa Joe |
| MMichael VerdiTrent Acid | Trent Acid |
| RRick DiazRicky Reyes | Ricky Reyes |
 John Raymond RiveraRocky Romero | Rocky Romero |
 Phil BrooksCM Punk | CM Punk |
 Scott ColtonColt Cabana | Colt Cabana |
 Chuck WilliamsThe Rockin' Rebel | The Rockin' Rebel |
 Mark PughMark Briscoe | Mark Briscoe |
 Jamin PughJay Briscoe | Jay Briscoe |
 Brandon SilvestryLow Ki | Low Ki |
| NNelson Rodriguez ErazoHomicide | Homicide |
 Charles ScaggsToo Cold Scorpio | Too Cold Scorpio |
 Jamar ShipmanJay Lethal | Jay Lethal |
 Christopher GuyNot listed | Not listed |
 Patrick MartinAlex Shelley | Alex Shelley |
 Danny LopezDan Maff | Dan Maff |
 Benjamin WhitmerBJ Whitmer | BJ Whitmer |
 Christopher LindseyRoderick Strong | Roderick Strong |
 Steven HaworthNigel McGuinness | Nigel McGuinness |
| JJohn StagikasJohn Walters | John Walters |