Mary Louise

Mary Louise is a little girl Whatnot who was most often seen on The Muppet Show performing alongside frogs in musical numbers such as "I'm in Love with a Big Blue Frog" and "Never Smile at a Crocodile," primarily during the first season. In episode 208, she auditioned for the show by singing a duet with her friend, who was (not surprisingly) also a frog. After they're hooked off the stage, Mary Louise returned to audition twice more, under the names Carrie Louise and Terry Louise. All of these attempts were unsuccessful, in part due to Miss Piggy's explicit protestations that she's the only one who can sing with frogs on the show.