Mark Acheson (born September 19, 1957) is a Canadian film, television and voice actor.
Acheson began studying acting at Langara College’s Studio 58 at the age of 15.
In his 30s, he started an extensive career in film and television, mostly in supporting roles.
[2] Acheson has also amassed a large body of work in voice acting, where he tends to be cast as villains.
He voiced Lord Tirek in My Little Pony: Friendship Is Magic, Sabretooth in Hulk Vs. Wolverine, and various characters in The Transformers.