Multi-player mode characters
Successfully complete the following missions in story mode to unlock the corresponding character in multi-player mode:
Cin Drallig: Mission 12
Count Dooku: Mission 4
Darth Vader: Mission 17
General Grievous: Mission 9
Mace Windu: Mission 10
Obi-Wan Kenobi: Mission 17
Serra Keto: Mission 12