Dalek (I'm Gonna Spend My Christmas With A Dalek)

An unusually-peaceful Dalek came to Earth on Christmas to bring his species' greetings to humanity.

Biography
This Dalek arrived on Earth and, coming across a human little girl, brought her "greetings from all Daleks". Excitedly, the girl decided that this meant she was "gonna spend [her] Christmas with a Dalek", notably intending to hug him underneath the mistletoe and feed him sugar spice (though only if he was "very nice"). She also planned to show him to her mum and daddy on Christmas morning.

Surprisingly, the Dalek went along with this, happily chanting "Merry Christmas!" and "Happy Christmas!". He eventually declared that he wished to be the little girl's friend, and, having tasted plum pudding and custard thanks to her, asked if he might please have some more.

The girl hoped that if she made the Dalek happy enough, he would stay with her forever. (NOTVALID: I'm Gonna Spend My Christmas With A Dalek)

Behind the scenes

 * The voice is provided by Johnny Worth, who wrote the song.