Steve-Dave Pulasti, the world's most anal-retentive comic book shop owner. Steve-Dave (played by View Askew regular and writer of Vulgar Bryan Johnson), and his crony Walt the Fanboy (played by Walt Flanagan) haved kicked many a Kevin Smith character out of their comic book shop.
Walt the Fanboy and Steve-Dave can be seen in Kevin Smith's Jersey films: Mallrats, Dogma, the Clerks ABC Animated Series, and the deleted scenes (viewable in the Criterion DVD of Chasing Amy, and in the special edition of the Jay and Silent Bob Strike Back DVD).
"Tell 'em, Steve-Dave!"