Characters
LEGO Star Wars: The Complete Saga has characters that span all six Star Wars films, many of which can only be unlocked by spending studs (the game's currency) at the in-game store. If you are a little light in the stud department, you can do the next best thing and use these cheats to unlock many of the game's sixty-plus roster.
Admiral Ackbar - ACK646
Boba Fett - LA811Y
Jango Fett - KLJ897
Count Dooku - DDD748
Darth Maul - H35TUX
Darth Sidious - A32CAM
IG-88 - GIJ989
Ki Adi Mundi - MUN486
Padme - VBJ322
Stormtrooper - NBN431
Cheats
Finding everything in LEGO Star Wars can be quite a chore. Thankfully the game's developers have put in some helpful items to assist in finding every hidden minikit part.
Jedi Grapple - CLZ738
Minikit Detector - LD116B
Invincibility - 4PR28U
Unlock Indiana Jones
Even though he has never made an appearance in the Star Wars universe, Indiana Jones is still part of the larger LucasFilm family. This means that you can unlock him if you have 50,000 Studs and a couple of minutes of patience.
Inside the Cantina, make your way into the Bonus Room. From there, watch the trailer for the LEGO Indiana Jones game. Once the trailer is complete, make your way to the store and you now have the option to purchase Indiana Jones for 50,000 studs.