# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2019-05-22 08:09:56 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1131109928326914049) In reply to: [@keefmoon](http://twitter.com/keefmoon/status/1131108612196245504) First appearance of Nebula. Played by Karen Gillan from Doctor Who. The second Doctor’s assistant to appear in the MCU, by my count.