Hornean/Archive/Important Sesame Street Muppet Characters (in order of appearance)

Big Bird (1969-present)
Ernie (1969-present)
Bert (1969-present)
Oscar the Grouch (1969-present)
Kermit the Frog (1969-2001, 2009)
Cookie Monster (1969-present)
Little Bird (1969-1999)
Grover (1970-present)
Herry Monster (1970-2004, 2009)
Slimey the Worm (1979-present)
Snuffy (1971-present)
Prairie Dawn (1971-present)
Count Von Count (1972-present)
Barkley (1975-2004, 2009-10)
Telly Monster (1979-present)
Elmo (1981-present)
Baby Bear (1991-present)
Rosita (1991-present)
Zoe (1993-present)
Curly Bear (2005-present)
Abby Cadabby (2006-present)
Murray Monster (2007-present)