PERSON@1 -LRB- -RRB- ; -LRB- March NUMBER@1 , NUMBER@2 -- December NUMBER@3 , NUMBER@4 -RRB- was an influential MISC@1 animator , director , producer , storyboard artist , and cartoon artist , whose movie and television cartoon characters entertained millions of fans worldwide for much of the twentieth century .

PERSON@1 -LRB- March NUMBER@1 , NUMBER@2 -- December NUMBER@3 , NUMBER@4 -RRB- was an MISC@2 animator , cartoon artist , storyboard artist , director , producer , and co-founder , together with PERSON@2 , of Hanna-Barbera .
