Charlie McDonnell is a British filmmaker, screenwriter, musician, former vlogger, author and Twitch streamer from Bath, Somerset. On 15 June 2011, her YouTube channel charlieissocoollike became the first in the United Kingdom to reach one million subscribers.

Chameleon Circuit were an English rock band known for creating music inspired by the British television series Doctor Who. Composed of popular UK YouTube vloggers and Doctor Who fans, the band released their self-titled debut album on 1 June 2009.