Eduardo Estaban is a character in The Mary Morstan Mysteries portrayed by Andy Wolfe. He is an Ecuadorian born highwayman and con artist who utilizes his smooth charms to lull his victims (mostly female) into a false sense of security. He becomes one of the first clients of Professor Moriarty's fully working "Simian Serum" to develop his strength and speed even further.
Eduardo is the main villain of the episode "The Ecuador Equation" (Series 2, Episode 4) as well as appearing in the series finale "The Devil's Gambit" (Series 2, Episode 5).
Andy Wolfe, who plays Estaban, is the partner to MMM star Lexi Wolfe.