At the main menu, hold L and press Up, X(2), Y, Right, Up, B, Y. If you entered the code correctly, the wheel will spin. Then, enter one of the following names at the "Create Skater" screen to unlock members of the Neversoft development team, family members, and their own custom skaters:
Aaron Cammarata
Chris Rausch
Connor Jewett
Darren Thorne
Gary Jesdanun
Jason Uyeda
Joel Jewett
Johnny Ow
Junki Saita
Mick West
Noel Hines
Nolan Nelson
Ralph D'Amato
Ryan McMahon
Scott Pease
Edwin Fong
Jeremy Andersen
Silvio
Aaron Skillman
Hudson
Kage
Nggdynln
Robert Earl
The Pouncer
Chewbacca
CountryGimp