Rodney

From Muppet Wiki

Rodney is the host of "The Curious Zone" seen at the beginning and end of Neat Stuff To Know & To Do. Spoofing Rod Serling's role on the original Twilight Zone series, Rodney prepares viewers to cross the line between not knowing and knowing.

He also appears later in the video to explain to the Snake Charmer how snakes are charmed.