Mr Sean Leydon is a Branch Instructor for Walsh Martial Arts Australia.

Mr Leydon commenced martial arts training with his son and daughter in 2010.

Currently, Mr Leydon hold a 2nd Dan Black Belt in Tae Kwon Do. Mr Leydon is an officer in the Royal Australian Navy and holds the rank of Commander.

He also holds a Bachelors Degree in Electronic Engineering and Masters degrees in Business Administration, Maritime Studies and Strategy & Management.