Mark Gatha

He is a retired Canadian voice actor who was employed at Blue Water Studios between 2002 and 2006. He is most recognized for providing the voice of Domon Kasshu in the anime G Gundam and X in the Mega Man X video game series. Additionally, he voiced Irvine in the anime Zoids: Chaotic Century.
The Megaman Network site states that Gatha is no longer active in voice-over work. According to Lucas Gilbertson on his YouTube channel, Gatha trained as an orthopedic surgeon in St. John's, Newfoundland and Labrador, and currently works in the Vancouver area.