Anyone who grew up during the 1960’s or 1970’s will remember Underdog:
“Look! Up in the Air! It’s a bird!”
“It’s a plane!”
It’s a frog”
“No, not bird, nor plane, nor even frog. It’s just little ol’ me, Underdog!”
His girlfriend was sweet Polly Purebread and his nemesis was Simon Bar Sinister, who seriously needed to get to an orthodontist for the underbite and protruding teeth.