Dick Van Dyke remains a beloved and esteemed entertainer at age 91, fondly remembered for his charismatic performances as a hapless songwriter in Bye Bye Birdie and a sooty-faced chimneysweep in Disney’s 1964 musical Mary Poppins. What he’s remembered decidedly less fondly for is the other role he played in the period-piece musical, elderly bank chairman Mr. Dawes, Senior. Clad in old-age makeup and credited as “Nackvid Keyd” (an anagram of Dick Van Dyke), the notorious D.V.D. busted out a frightfully bad Cockney accent in his scenes as the tight-fisted money man. Widely mocked at the time and voted the second-worst accent ever in a poll from Empire, it was not the high point of Van Dyke’s impressive career.