Professor Albert Einslime is a worm scientist who leads the team of WASA experts during Slimey's trip to the Moon. Headquartered at mission control on Sesame Street, Dr. Einslime's first call to action was during a crisis on board the Wiggleprise in Episode 3713. With Oscar's help, Einslime oversaw a recovery assignment to get the ship back on course after the crew became stir crazy and fought over a pink bowling ball.
When the landing capsule was scheduled for splashdown in Episode 3785, Einslime completed his duty for the worm space mission. Fortunately, the scientist was on hand when The Count's thunder and lightning changed the capsule's destination for splashdown, with its coordinates targeted for Sesame Street. Thinking quickly on his feet (so to speak), Einslime ordered the acquisition of a portable mini splashdown facility, which the residents of Sesame Street produced in the form of a washbucket.
In his original appearances, Einslime spoke in a slightly fast, squeaky voice (achieved by speeding up his voice track). In his later appearance in Episode 4142, he spoke more slowly and clearly, and had a thick higher-pitched German accent.
Professor Albert Einslime is a spoof of the famous physicist Albert Einstein.