Strophius

Strophius was a king of Phocis and a son of Crisius. According to some accounts he was the husband of Agamemnon's sister Anaxibia (or Astyoche). His name literally means 'turning', 'twist' (strophe), but perhaps we should take this in a metaphorical sense and call him a 'twister' or 'slippery' customer.

To be fair, however, the stories we have about him do not indicate any marked shiftiness or deviousness in his doings.