Scooter (Muppet) and Nelson were also known for being vocally talented, and Scooter sat in with the band on occasion (as a vocalist or guest musician). Scooter and Floyd's rendition of "Mr. Bass Man" symbolizes Hunt and Nelson's relationship. Scooter has appeared in most Muppet films and television specials. In "The Muppet Movie", Scooter acts as The Electric Mayhem's manager. In "The Great Muppet Caper", he was a resident of the Happiness Hotel. In "The Muppets Take Manhattan", he was among the core group who attended college together and struggled to put their show on. In this appearance, he was the treasurer
The Muppet Show new puppeteers, Steve Whitmire and Kathryn Mullen joined the troupe of Muppeteers during this series. Also, in early episodes of the third series, Peter Friedman was auditioned to replace John Lovelady as a sixth male Muppet performer. Steve Whitmire was eventually hired, replacing Lovelady officially as a sixth male performer. Most of the characters and sketches from the previous series remained. Canteen worker Gladys however, was replaced by a new character, Winny. Rizzo the Rat also made his earliest appearances. Rizzo made his first appearance as "Super Rat" in the episode which featured Christopher Reeve as its guest star. The