Who is the actor in the Shaw Cable commercials on Canadian TV? Tall
guy with black hair who's kind of goofy. Based on standard google
searches, I think his name is "Brent Cleasby," but can't find any more
information about him, if this, in fact, is his name.

I really have no idea, but i was telling my roomate how great he was
today, haha.  I think his name is Brent Cleasby, and apparently he is
from Calgary...who knew!
Let me know if you find more info!  Im intrigued as well.

His name IS Brent Cleasby, he just finished working at Maclin Ford in
Calgary (assumably to pursue his acting career), and his commercials
are shown constantly on any shaw cable channel.  i hope he does
extremely well in whatever he pursues!