Yellow-bellied Judas (maybe stubborn too, aka: stiff-necked, cuz he didn't even come to Jesus for forgiveness. Really??!! What WAS he thinking??!! His PRIDE is what kept him in "conviction" mode, and thus, a coward, to the very end. He should'a rannnnnnnn to Jesus.)
Aaron - yeah, he was a priest, but horrendously sinned when he actually made a calf from the gold that the people provided, during Moses' absence, and then had the audacity to turn against Moses with Miriam (who God struck with leprasy), and who died in disgrace after God stripped him of his priestly robes.