What is the name of the Muppet scientist who invents things?

The Muppet scientist who invents things is Dr. Bunsen Honeydew.

Bunsen is the bald, yellow-green scientist who hosts demonstrations from Muppet Labs, whose slogan is “Where the future is being made today.” He is portrayed as an enthusiastic inventor with complete confidence in his experiments, even when those experiments go disastrously wrong.

His most frequent victim is his assistant, Beaker. Bunsen often tests a device or invention on Beaker without adequately considering the consequences, leading to explosions, electrocution, shrinking, duplication, or other comic catastrophes. Beaker’s frightened squeaks and frantic attempts to escape provide the physical counterpoint to Bunsen’s calm explanations.

The character first appeared on The Muppet Show and was created and performed by Dave Goelz. His name evokes the Bunsen burner, a laboratory device named for chemist Robert Bunsen. His fictional university, Carnegie Mellonhead University, parodies Carnegie Mellon University. Dr. Bunsen is therefore distinct from Dr. Teeth, the bandleader of Dr. Teeth and the Electric Mayhem, while Beaker is his assistant rather than the inventor himself.