Harry Callaghan, or 'Harry101UK', is a YouTube filmmaker, singer, composer and voice actor. He became relatively well known on YouTube for his rather good imitation of Stephen Merchant's Wheatley from Portal 2. Since then, he's written and produced several songs based in Portal, several music tracks for Portal mods and the fanfic 'Blue Sky', and some original tracks as well. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.