blighter

(noun) a persistently annoying person. Synonyms: pest, cuss, pesterer, gadfly.

(noun) a boy or man. Synonyms: chap, fellow, feller, fella, lad, gent, cuss, bloke. Examples: "That chap is your host." "There's a fellow at the door." "He's a likable cuss." "He's a good bloke."