So I watched Red's livestream and tried to get some answers

Purple is mind controlling the Vacktors apparently

We already know that he has kidnapped them

Spooky Tales where they are children may return he said it will be hard and eight people helped out with that, but it may return if people want it

After the livestream he stayed in the chat for a bit

Yellow is unfortunately not a robot he was BORN (One of my favorite theories was crushed) (He will still be a robot in all my stories. I'm not changing that) 

Apprently the Vacktors are experiments that went wrong (yet in Spooky Tales which he may continue were children)

Conclusion some answers, but way more questions

Edit 

Red never confirmed or denied if the Vacktors were his siblings or emotions. That's how I asked the question. He said "science experiment gone wrong." Which means they could in the Spooky Tales universe (if it is a different universe) be created by his parent(s) since Red did say "no yellow was BORN" it's possible that the Vacktors could have been babies and even grew up getti stuck inside Red's head temporarily and believing they were his emotions 

(I'm not going to change anything about my story or its plan the only thing we do know for certain is Yellow is not a robot, but he will still be in my story)