You can change their name using the Rename Anything
Wait and trade
Ask them to get out of their power Armour
Can be sent to other settlements
Thanks for MateredDyn for the images.
Loose Vanilla meshes and textures for custom
Meshes\Actors\Character\ you see their names here
Textures\Actors\Character\ you see their names here
Click their name for a voice sample of their voice type
Logan
Located at Warwick homestead
Kyle
Located at The Castle
Ray
Located at the Red Rocket
Jean Used this face preset
Located at the Sanctuary
Lisa
Located at the County crossing
Jamie
Located at the Abernathy farm
Casey
Located at the Tenpines Bluff
Taylor
Located at the Oberland station