<Tr> <Th> Kingston Livingston III </Th> <Td> Kevin Clash </Td> <Td> A young African - American boy who is smart and cool, and who prefers to do his own thing . He is "one cool kid" who is different by just being himself . </Td> </Tr> <Tr> <Th> Lefty the Salesman </Th> <Td> Frank Oz, Caroll Spinney (occasionally) </Td> <Td> A discreet, shady - looking salesman in a trench coat . </Td> </Tr> <Tr> <Th> Little Bird </Th> <Td> Jim Henson (1969), Fran Brill </Td> <Td> Wise, soft - spoken little bird who is good at explaining concepts for his friend Big Bird . </Td> </Tr> <Tr> <Th> Little Chrissy </Th> <Td> Jim Henson (puppeteer), Christopher Cerf (voice) </Td> <Td> The lead singer of "Little Chrissy and the Alphabeats," he was one of the earliest Muppets based upon an actual person (Cerf). </Td> </Tr>

Who is the purple character on sesame street