Control-Q is a way you can get Artemis Entreri into your party. Entreri isn't officially in the game, but his character is (probably put there for a joke by someone at Bioware). First you need to spawn him by using the CLUAConsole command:
CLUAConsole:CreateCreature("artemis");
He will appear, then pause the game and Ctrl-Q him. He will then earn XP like any other party member. He comes with his lifestealing dagger, good stats and a very cool voice.
