The most well known puppeteer in the US is the late Jim Henson who brought Kermit the Frog and Miss Piggy to the screen in the Muppet Show (kids.britannica).
Sesame Street also features a lot of puppets as well. Some are life sized like Big Bird and Snuffleupagus. Others are smaller like Slimy, Oscar the Grouch’s pet worm. (muppet fandom) I have a couple of favorites: From Sesame Street I am a fan of the Martians or as they are sometimes called the Yip Yips, and from the Muppet Dr. Teeth (from the Muppet Band the Electric Mayhem). Who are your favorites?