Cookie Monster (2001–present), Baby Bear, Two-Headed Monster (right half) (1998–present), Humphrey, Chicago the Lion, Davey Monkey, Athena, Flo Bear, Sully (1993–1999), Sonny Friendly (1992–2000), Tessie Twiddlebug (1987–1996), Norman, Dr. Edwynn, Ernestine, Rudder Rabbit, Velma Blank, Duane, Tyrone, Freddy (2017), One of the Fuzzy Funk, One of the Git Along Little Doggies, Granny Snuffle (1989), Dip Cat (1992), Cookie Monster's Grandma (1994), Mommy Snuffleupagus (1990s), Yip Yip Martian, Various