Hugo A-Go-Go is a mad scientist and the main villain of the cartoon series
Batfink.
He is a blue-smocked and wild-haired man and is referred to as "the world's maddest scientist" and spends his time in his "secret" laboratory creating weird and wacky inventions (including at one point building himself a robot bride complete with robot mother-in-law) to defeat Batfink and dominate the world.
He somehow manages to escape jail every time when caught to antagonize the hero in a later episode. The cheerfully demented little villain often breaks the fourth wall to talk with the narrator.