I’ve always enjoyed Bugs Bunny, but there’s a character with a small role in this MGM cartoon, that looks like the early version of Bugs Bunny when he debuted in 1938. One reason for the might have been because Rudolf Ising and Hugh Harman, a director of this MGM movie, went on to created the Looney Tunes and Merry Melody series at Warner Brothers.
http://www.tcm.com/tcmdb/title/310847/The-Hound-and-the-Rabbit/ and https://en.wikipedia.org/wiki/Bugs_Bunny.