noun (n)

• someone with an assured and ingratiating manner(noun.person)

  Synonym:
  smoothie, smoothy, sweet talker
  

  source: wordnet30
• a person who charms others (usually by personal attractiveness)(noun.person)

  Synonym:
  beguiler
  

  source: wordnet30
• One who charms, or has power to charm; one who uses the power of enchantment; a magician.(noun)

  source: webster1913