Cass Pennant is the best-selling author of eight football fan-related books, five of which have been UK Top Ten bestsellers. Pennant is also the eponymous hero of the British feature film Cass (2008), based on his best-selling autobiography about his turbulent life and character, constantly strengthened through adversity. Cass was directed by Jon. S. Baird and filmed starring Nonso Anozie, Nathalie Press and Tamer Hassan.
It was a culmination of events and a violent lifestyle as a leading member of notorious 80s football gang the ICF that saw him convicted and sent inside prison and it was at this time that Pennant began to write. In the range of hooligan literature the singular elements of humane dynamism and sympathy within Pennant’s writing stood out. His story showed an escape route for those brutalised by their early experiences, a way out of the dead end towards moral redemption and peace. As an acknowledged authority on the culture of hooliganism and gang culture, he advised on numerous TV and film projects, including Guy Ritchie's acclaimed Snatch, Lexi Alexander’s Green Street/Hooligans, Alan Clarke’s The Firm plus Bravo TV's The Real Football Factories series, ITV’s Bouncer’s series and Ian Stuttard’s award winning Thames TV documentary Hooligan.