The former League of Gentlemen star on his love of low-budget British spinechillers, his loathing of Brexit and a slew of projects opening this winter Mark Gatiss scans the breakfast menu at an east London restaurant with a famished eye. We're at the hinge moment between the nightlife of an A-lister, who attended the James Bond premiere the previous evening, and the day job as an actor who, by his own account, could …