From Wikipedia, the free encyclopedia Alastair Aiken (born 6 November 1993), better known by his online alias Ali-A (or by his original alias Matroix), is a British YouTuber known for Call of Duty and Fortnite commentaries and vlogs. His main channel Ali-A has a subscriber count of over 16 million, with its total views exceeding 4 billion. His second channel, More Ali-A, has a YouTube subscriber count of 5.1 million and a total of over 959 million video views. On 23 April 2018, Ali-A created a new channel, titled "Clare & Ali" with his partner, Clare Siobhan. The channel has since gained over 480,000 subscribers and generated more than 3.5 million video views.