Frieza, Gohan, Goku, Kid Buu, Little Goku, Pan, Perfect Cell, Piccolo, SS Goku(DBZ), SS Goku(GT), SS Little Goku, SS Trunks(GT),
SS Trunks(DBZ), Trunks(GT), Vegeta, Vegeto

Secret Characters

To play as Gogeta, you have to beat the game on hard 20 times

Cheats

To play as Super Bebi Vegeta, press and hold select & square at the character select screen until the fight begins

To play as SS4 Goku for the American version, go to the title screen, press right, left, down, up, right, left, down, up, then press triangle 10 times & the square button 9 times.
In the Japanese version, go to the title screen, press right, left, down, up, right, left, down, up, then press triangle 5 times & X 9 times.