I've already angered some experts w legal questions :D - not - I know I shouldn't hope for such binding certainty w, basically, friends!
If I put in a game, a character, npc called Brad Pitt, I'd get in trouble, but how strict are they on similar names,
like, Bradd McPitt, or Ranakin Slywalker? How does a similar character look factor. Space Quest III had the Vader v Obi-Wan duel in their hangar, briefly. I'm sure Sierra got legal permission. I think I saw that if you make a character that is in all black, helmet and laser sword, that is a no-no. What about a dead ringer for an Alien? (xenomorph)
What should I know!?