All hidden wrestlers:
Select "Edit Wrestler", then choose the "Name Entry" option. Enter ALL for "Nickname", CLEAR for "First Name", and WRESTLER for "Last Name". Then, set "Exchange" to "Off", "Middle" to "Space" (Square icon), and press Start. Press B until you return to the main menu. All wrestlers will now be unlocked.

Dick Murdoch:
In manager of the ring mode, go to "Talent Search". Choose "Strong" for the fighting style and "America" for the region.

D-Von and Bubba Ray Dudley:
In manager of the ring mode, go to "Talent Search". Choose "Any" for the fighting style and "America" for the region.

Dynamite Kid:
In manager of the ring mode, go to "Talent Search". Choose "Showmen" for the fighting style and "Europe" for the region.

Gary Albright:
In manager of the ring mode, go to "Talent Search". Choose "King Road" for the fighting style and "America" for the region.

Giant Baba:
In manager of the ring mode, pick AJP as your federation. Sometime in your third year, you will unlock him.

Goldberg:
In manager of the ring mode, go to "Talent Search". Choose "Strong" for the fighting style and "America" for the region.

Great Muta:
In manager of the ring mode, go to "Talent Search". Choose "Lucha" for the fighting style and "Mexico" for the region.

Hiroshi Tanahashi:
In manager of the ring mode, go to "Talent Search". Choose "Strong" for the fighting style and "Japan" for the region.

Mike Modest:
In manager of the ring mode, go to "Talent Search". Choose "Showmen" for the fighting style and "America" for the region.

Rick Flair:
In manager of the ring mode, pick WCW as your federation. At the end of your second year, you will unlock him.

Roland Bock:
In manager of the ring mode, go to "Talent Search". Choose "Stoic" for the fighting style and "Anywhere" for the region.

Royce Gracie:
In manager of the ring mode, go to "Talent Search". Choose "Stoic" for the fighting style and "Anywhere" for the region.

Salman Hashmikov:
In manager of the ring mode, go to "Talent Search". Choose "Strong" for the fighting style and "Europe" for the region.

Stacy Kiebler:
In manager of the ring mode, go to "Talent Search". Choose "Showman" for the fighting style and "America" for the region.

Tajiri:
In manager of the ring mode, go to "Talent Search". Choose "Showman" for the fighting style and "Mexico" for the region.

Takehiro Murahama:
In manager of the ring mode, go to "Talent Search". Choose "Lucha" for the fighting style and "Japan" for the region.

Trainer:
Finish every step in training mode to unlock the Trainer

Ultimo Dragon:
Play manager of the ring mode for five years with Toryumon. If you are Rank 1 overall, some time in your fifth year you will see a nurse screen. When you look in your roster, Ultimo Dragon will be unlocked.

William Regal:
In manager of the ring mode, go to "Talent Search". Choose "Any" for the fighting style and "Europe" for the region.

The King-Road-Style Title:
In manager of the ring mode, pick AJP as your federation. Sometime in you third year you will unlock Giant Baba and he will be holding the title.

The Showman-Style Title:
In manager of the ring mode, pick WCW as your federation. At the end of your second year, you will unlock Rick Flair and he will be holding the Showman title.