Willium "Mate" Cobblers, working-class cockney idiot, who played all sorts of roles, including soldiers, policemen and various menial servants. His catchphrase, "You can't park 'ere, mate", was a Goon in-joke that took a swipe at officious BBC commissionaires. (Sellers used a similar voice for trade union leader Fred Kite in the movie I'm All Right Jack). Based on a hardware store owner known to the Goons. When asked "What kind of wood is this?" he would respond "That's solid wood, that is, mate".