Wait, on the impossible astronaut the doctor died and was about to regenerate. But on the name of the doctor he couldn’t regenerate till the time lords or whatever gave it to him.
It was a light show created by the Tesselecta, it’s pretty damn obvious. Also, it was the Time of the Doctorwhen he was given a brand new regeneration cycle, pay attention.
In his younger days.
He served Eria the Water Charmer as her familliar.
During this time they fought many battles together
He served her loyally because when he was younger, Eria had saved him from being eaten.
Eventually he grew up,
Into a formidable being.
One day, when fighting the forces of evil, Eria sacrificed her soul to cast a spell.
In an attempt to save his only friend, Gagagigo possessed her body to keep her alive.
Is this real???
No, there was a mini-sode where they have a date to the Singing Towers, before her demise.