Will the real BACCHUS please stand up

The fat jolly one or the super handsome one?

The image disparity is such a polar opposite of each other that you wonder what's up with that. Historians say Bacchus is supposed to be beyond handsome so when did he morphed into the fat jolly one which is now the more popular or the only known portrayal?

Bacchus in FANTASIA

Pierre Brice as Dionysus (Bacchus) in THE BACCHANTES