Jack is part of a multi-award-winning writing partnership with his brother Harry Williams. They began writing together 2007 with the BBC2 sitcom ROMAN’S EMPIRE, starring Mathew Horne and Chris O’Dowd. The show was subsequently piloted for American television, with Kelsey Grammer in the lead. After this, they pursued a career in comedy, writing shows for both in the UK and American markets, writing numerous pilots for Warner Brothers, 20th Century Fox, NBC Universal and CBS Television among others. For the UK they wrote and produced pilots and series including THE AMAZING DERMOT, BAMBOO, FULL ENGLISH and THE GUARDIANS (which they also directed).