Doonesbury character modeled after Hunter S. Thompson, gonzo journalist for Rolling Stone. Uncle to Zonker. Usually involved in several scams at once. Often stoned.

Duke's jobs have included U.S. ambassador to China and "medicinal" consultant for the Washington Redskins. Was taken hostage in Iran in 1979, called "The Bald Spy" by his captors. Nowadays has a illegitimate son in tow, a real chip off the old block.