William Davies, sometimes credited William Davis or Will Davies, is an English screenwriter and producer. He has written and co-written a number of films including Twins (1988), The Real McCoy (1993), the Johnny English franchise (2003-2018), Alien Autopsy (2006), Flushed Away (2006), How to Train Your Dragon (2010), Puss in Boots (2011), and Lyle, Lyle, Crocodile (2022).