Hi i have a question,can i change my legacy name,because when i unlock the legacy i dident know that legacy is for all my characters and the second question what will happen if i delete the character i unlock the legacy?

Hi! I play a imperial agent and i have a question about the story quest.I star to play the double agent quest ,but since that moment i dont have companions.They just stay in the ship,is there a problem or this is the way it have to be ....i play 2 lv without commpanions and i start to think :?