William Watts Biggers, the co-creator of "Underdog," the dimly recalled yet foundational mod cartoon you once watched at your grandmother's house, thrilling as the shy and awkward shoe-shine dog transformed himself into a brave and awkward superhero to save his love Sweet Polly Purebred from all manner of canine villains, and which first inculcated in you a hope that power and dignity was attainable to the least among us, has died. Everything does.