Who is the cranky old man that does the Diabetes commercials for liberty mutual?

Question

And why is he always so pissed off?

Answer 1

I was going to say Wilfred Brimley, too.  He used to do commercials for Quaker Oats.

Answer 2

Wilford Brimley and wouldn't you be peeved if that was your name?

He looks constipated.  Maybe its the medication.  He could do another commercial for Exlax.  

Answer 3

This is probably the reason:

IMdB: A controversial activist, he paid from his own funds for ads to have Utah allow horse-race gambling, and he was actively opposed to the banning of cockfighting. He has campaigned in Arizona and New Mexico against laws banning cockfighting.

Answer 4

Wilford Brimely. He has made a career of being the cranky old man in many movies and tv shows.  

Answer 5

http://www.youtube.com/watch?v=Cd6QpD-6F...

Answer 6

yeah, it is Wilford brimley, and he's hilarious