The answer is
HK-47 from KotOR.
Details:
1. Main character was amnesiac, HK needed to have his memories restored.
2. He is a hunter-killer droid (assassin).
3. Small guy with weird pronunctiation would be Vandar Tokare, a member
of Yoda's species.
4. The little girl would be Mission, and her wookiee friend Zaalbar.
5. Bastila is the character captured twice.
6. Juhani was the reviled character (deservedly so, bleh).
7. The old hermit is Jolee Bindo.