Sam Waterston (duh-duh!!!) had been the spokesperson for TD Ameritrade since 2003. Now the company has a new spokesvoice with the very hot Matt Damon. You can hear his work in the new ad above. The company calls Damon’s voice one of the most “recognizable” in the world, but honestly, if I didn’t know it was him, I probably wouldn’t have been able to guess.