↑McCann, Graham (December 2011). "5". Bounder!: The Biography of Terry-Thomas. Aurum Press. ISBN9781845137564. Retrieved March 10, 2015. Terry-Thomas ... and Eric Sykes ... formed a very effective on-screen double-act, (which ended up inspiring a pair of cartoon alter egos – Dick Dastardly and Muttley – in the popular Hanna-Barbera/Warner Brothers series Wacky Races.