Ten wrestlers made their first appearance in the Royal Rumble match: Daniel Puder, Kenzo Suzuki, Luther Reigns, Muhammad Hassan, Orlando Jordan, Simon Dean, Jonathan Coachman, Mark Jindrak, Paul London, and Gene Snitsky
The trivia item below may give away important plot points.
As good as it looked, the ending to the Royal Rumble match shown was not planned at all. According to Batista, when he pulled John Cena up to do his Batista Bomb, he pulled him up so furiously that Cena made him stumble and fall out of the ring with him, and it was absolute dumb luck that they both hit the floor at exactly the same time. Also, Vince McMahon tore both of his quadriceps upon entering the ring to sort it out (which would've not occurred had this been part of the storyline and he had stretched beforehand).