This file photo shows "Sesame Street" muppet Elmo posing for a portrait in 2011 with the assistance of puppeteer Kevin Clash.

What happens behind these walls will change everything.

“Before you even think twice, see if someone needs a hand. Be nice, and help them if you can,” Elmo sings joyfully in the 2016 holiday special “Once Upon a Sesame Street Christmas.” Built on the ...

Elmo • Hoots the Owl • Baby Natasha • Muppet • Wolfgang ... Grand High Triangle Lover • Green Dentist • Grover's Doctor • Jack • Jamal • Kevin • Lead Singing Dentist • Letter C • Little Pig • Max • ...

Beloved by children of all ages around the world, Elmo is an international icon. Few people know his creator, Kevin Clash, who dreamed of working with his idol, master puppeteer Jim Henson. Displaying ...

NEW YORK, N.Y. - A puppeteer who was the voice of Elmo on "Sesame Street ... 25-year-old Kevin Kiadii says he was 16 when he met Kevin Clash in an online chat. Kiadii attorney Jeff Herman says ...

“Beforeyoueven think twice, see if someone needs a hand. Be nice, and help them if you can,” Elmo sings joyfully in the 2016 holiday special “Once Upon a Sesame Street Christmas.” Built on ...