Nouns

(n)scalawag, scallywaga white Southerner who supported Reconstruction policies after the American Civil War (usually for self-interest)
(n)rogue, knave, rascal, rapscallion, scalawag, scallywag, varleta deceitful and unreliable scoundrel
(n)imp, scamp, monkey, rascal, rapscallion, scalawag, scallywagone who is playfully mischievous