Knights of the Old Republic, 2003
Hoo boy. HK-47 is somehow both simultaneously creepy and freakin' hilarious. He (it?) gets a major kick out of terminating what he refers to as "meatbags" (organics), and constantly tells you this in conversation, almost in a poetic sense. His primary role is basically that of a sadistic C-3PO, and he does make for a good teammate.
"Translation: two per cent probability that the miniature organic is simply looking for trouble and needs to be blasted. That may be wishful thinking on my part, master."
"Definition: 'Love' is making a shot to the knees of a target 120 kilometers away using an Aratech sniper rifle with a tri-light scope... Love is knowing your target, putting them in your targeting reticule, and together, achieving a singular purpose against statistically long odds."
HK-47: "Retraction: Did I say that out loud? I apologize, master. While you are a meatbag, I suppose I should not call you such."Revan: "You just called me a meatbag again!"HK-47: "Explanation: It's just that... you have all these squishy parts, master. And all that water! How the constant sloshing doesn't drive you mad, I have no idea."
^ The rest can be found here. Enjoy!