Any viewer watching a few hours of TV or streaming video every day is likely to come across a dizzying array of commercials, loaded up with different characters, special effects, crazy antics and popular songs. Some of the most memorable ones, however, all rely on a single element: Keegan-Michael Key. The actor and comedian, known for the sketch-comedy series “Key & Peele,” plays a group of intriguing characters in a new commercial from Kraft Heinz ‘ Ore-Ida for tater tots. Key and his “imi-