Vex

Vex is a fictional Fae and a recurring character featured on the Showtime/Syfy series Lost Girl. Played by actor Paul Amos, he was introduced in the season one episode "Vexed". He made twenty-four appearances in the series in total.

Overview
Vex is an assassin and a member of the race of Dark Fae in service to the Morrigan. He is considered a "mesmer", and can use his Fae abilities to manipulate the actions and emotional state of other Fae. He is characterized by his sharp British accent and a penchant for wearing black leather S&M gear.