Acheson first fell in love with acting with his first stage appearance at the age of 12 in the play "Child Psychology" for which Acheson won Best Supporting Actor. Acheson left home at the age of 13, graduated from high school at 15 and moved to Vancouver in 1973, enrolling in Vancouver College Langara's Performing Arts Program, being the youngest ever enrolled. When he graduated he was a founding member of the theatre company "Janus Theatre" producing 14 shows in a 3 year period.
From there Acheson performed on stage for the Arts Club, The Playhouse, and the New Play Centre for the next 10 years. His first film credit was Sheldon in Skip Tracer in 1978. Acheson has since built a career in television, film, commercials and animation voice work.