Huge thanks goes to Jayson for compiling this list!
WAVE 1: ROTJ
Build-A-Droid: R4-D6BD1: Han Solo (Left Leg)
BD2: Luke Skywalker (Right Leg)
BD3: Chewbacca (Dome & Foot)
BD4: Leektar & Nippet (Body)
Build-A-Droid: R7-Z0BD5: Ak-Rev (Left Leg and Booster Rocket)
BD6: Yarna d'al Gargan (Right Leg and Booster Rocket)
BD7: Bane Malar (Body)
BD8: Darth Vader (Dome & Foot)
Greatest HitsGH1: Commander Gree (R4-D6 Left Leg)
GH2: Kashyyyk Trooper (R4-D6 Right Leg)
GH3: TFU Battle Damaged Darth Vader (R4-D6 Dome & Foot)
GH4: TFU EVO Trooper (R4-D6 Body)
WAVE 2: CLONE WARS
Build-A-Droid: R4-J1BD9: Obi-Wan Kenobi (Left Leg)
BD10: Clone Scuba Trooper (Dome & Foot)
BD13: IG Lancer Droid (Body)
BD16: Clone Trooper (Right Leg)
Build-A-Droid: R7-T1BD11: Saesee Tiin (Right Leg and Booster Rocket)
BD12: Padmé Amidala (Left Leg and Booster Rocket)
BD14: Mon Calamari Warrior (Body)
BD15: Quarren Warrior (Dome & Foot)
WAVE 3: Repaints/Repacks
Build-A-Droid: 5D6-RA-7 (Black)BD17: Coruscant Clone Trooper (Torso)
BD18: Jodo Kast (Head)
BD19: Yaddle & Even Piell (Right Leg)
BD20: Saleucami Clone Trooper (Left Leg)
BD21: Count Dooku (Holographic Transmission) (Right Arm)
BD22: Imperial Engineer (BF II) (Left Arm)
WAVE 4: ROTS
Build-A-Droid: MB-RA-7 (Silver)BD23: Stass Allie (Left Arm)
BD24: Commander Faie (Torso)
BD25: General Grevious (Head)
BD26: Bail Organa (Right Arm)
BD27: Breha Organa (Left Leg)
BD28: FX-6 (Right Leg)