Dave SheridanDave Sheridan.

Dave Sheridan (June 7, 1943, March 28, 1982) was an American cartoonist and underground comix artist. He was the creator of Dealer McDope and collaborated with Gilbert Shelton and Paul Mavrides on The Fabulous Furry Freak Brothers. As creative partner with fellow underground creator Fred Schrier, using the name "Overland Vegetable Stagecoach," they worked on Mother's Oats Funnies, published by Rip Off Press from 1970 to 1976.