Does Bill have permission to slip you vague facts about your previous self or world?: Yes plz.
Is there anything specific you would like him to focus on?: Fire and chemistry jokes. Names or qualities of his friends from home. Military jokes/info. The Seven Deadly sins. Roy's desire to become Fuhrer President/"King" of Amestris.
Can Bill mention any random details of your world to someone else? : Go right ahead. Bill can recommend Roy to anyone who needs a light or wishes they could transform one object into another/fix something quickly.
Is there anything you absolutely do NOT want him to know: Riza's name and the fact she is his subordinate/bodyguard. (I'm reserving that for her to reveal to him. You can still have him make references to Riza in other ways. In fact I encourage it since she's one of the rescuers. And there might be something going on between them if you know what I mean. /wink wink)
-Roy is post canon so it's safe to mention just about anything else from his canon. He's the manga/Brotherhood anime version of Roy but you can still make jokes about the 03 anime if you like. Just to make it weirder.
Permissions for Roy Mustang
Is there anything specific you would like him to focus on?: Fire and chemistry jokes. Names or qualities of his friends from home. Military jokes/info. The Seven Deadly sins. Roy's desire to become Fuhrer President/"King" of Amestris.
Can Bill mention any random details of your world to someone else? : Go right ahead. Bill can recommend Roy to anyone who needs a light or wishes they could transform one object into another/fix something quickly.
Is there anything you absolutely do NOT want him to know: Riza's name and the fact she is his subordinate/bodyguard. (I'm reserving that for her to reveal to him. You can still have him make references to Riza in other ways. In fact I encourage it since she's one of the rescuers.
And there might be something going on between them if you know what I mean. /wink wink)-Roy is post canon so it's safe to mention just about anything else from his canon. He's the manga/Brotherhood anime version of Roy but you can still make jokes about the 03 anime if you like. Just to make it weirder.